upwind是什么意思,upwind中文翻譯,upwind發(fā)音、用法及例句
?upwind
upwind發(fā)音
英:[??p?w?nd] 美:[??p?w?nd]
英: 美:
upwind中文意思翻譯
adj.逆風(fēng)的
adv.逆風(fēng)的
upwind同義詞
leeward | bare | into the wind | open | windy | against the wind | weather | windward | exposed
upwind反義詞
downwind
upwind常見例句
1 、Horizontal-axis wind turbines typically either have two or three blades. These three-bladed wind turbines are operated "upwind" with the blades facing into the wind.───水平軸的一般是兩片或者三片葉片,三片葉片的那種是工作于“逆風(fēng)”方式的,就是說葉片正對于風(fēng)。
2 、Upwind Finite Element Method for Solving Radiative Heat Transfer in Semitransparent Media───求解半透明介質(zhì)內(nèi)輻射換熱的迎風(fēng)有限元法
3 、fifth-order upwind differencing method───五階迎風(fēng)
4 、A Class of Compact Upwind TVD Difference Schemes───一類TVD型的迎風(fēng)緊致差分格式
5 、If we're upwind of the wolves they may smell us.───如果我們處于狼的上風(fēng)位置,它們就能聞到我們的氣味。
6 、Beginners like to use this board, because they can perfect their water launches and can ride upwind easily.───初學(xué)者喜歡使用這個委員會,因為他們完善他們的水發(fā)射,能容易地乘坐迎風(fēng)。
7 、Keywords product oil pipeline;flow electrification;streaming current;numerical computation;second-order upwind difference scheme;───成品油管道;流動帶電;沖流電流;數(shù)值計算;二階迎風(fēng)差分格式;
8 、A modified upwind difference scheme for problem of contamination by incompressible nuclear waste with dispersion───含彌散項的不可壓縮核廢料污染問題的修正迎風(fēng)差分格式
9 、The Modified Upwind Difference Method for Two-phase Entirely Compressible Miscible Displacement in Porous Media───多孔介質(zhì)中兩相完全可壓縮可混溶驅(qū)動問題的修正迎風(fēng)差分法
10 、characteristic and upwind finite difference───特征和迎風(fēng)差分
11 、SECOND ORDER UPWIND DIFFERENCE SCHEME FOR MISCIBLE DISPLACEMENT PROBLEMS IN POROUS MEDIUM───多孔介質(zhì)中混溶驅(qū)動問題的二階迎風(fēng)差分格式
12 、Westernization Group conform to the historical trend and finally stood upwind, the start superfate.───洋務(wù)派順應(yīng)了歷史的潮流,終于占了上風(fēng),開始飛黃騰達(dá)了。
13 、hybrid upwind schemes───混合型迎風(fēng)格式
14 、However, the free blade design can change the windward blades angle, and the acting force on the blade can work more efficiently.On the other hand, blades are set free in the upwind stroke.───本研究所提出之活動式葉片,其迎風(fēng)側(cè)能改變?nèi)~片角度,使迎風(fēng)葉片保持正向受力,但逆風(fēng)側(cè)時可隨風(fēng)擺動降低其逆風(fēng)阻力。
15 、For example, the artificial modification of rain at New York City may suggest a seeding activity just a few miles upwind of the metropolis.───比如說,對紐約市進(jìn)行人工降雨可能意味著在該市上風(fēng)不過幾英里處進(jìn)行一次撒播作業(yè)。
16 、I think we'll leave you to your jigsaw and move upwind.─── 我們就留下你來做拼圖 然后去上風(fēng)處了
17 、The convergence of three domain decomposition upwind difference algorithms (UDS, IMUDS and MUDS) is analyzed.───摘要本文給出了一階迎風(fēng)差分、內(nèi)邊界二階迎風(fēng)差分和二階迎風(fēng)差分三種格式的算法和誤差估計。
18 、When waves become your focal point, the Rad-F directional twin offers true surf handling and upwind ease.───以延長玩家玩浪的時間。并維持著雙向板垣有特性。
19 、General upwind difference method for soil solute transport equations───求解土壤溶質(zhì)運(yùn)移方程的廣義迎風(fēng)差分法
20 、As the parachutist nears the ground he is directed by Japanese instructions to have his back upwind.───當(dāng)傘兵接近地面時,根據(jù)教范,他們應(yīng)當(dāng)自己調(diào)整為逆風(fēng)下降。
21 、The spectral element method based on streamline upwind Petrov-Galerkin(SUPG)stabilization scheme was developed to solve multidimensional radiative heat transfer in semi-transparent media.───本文發(fā)展了基于流向迎風(fēng)彼得羅夫-伽遼金(SUPG)格式的譜元法來求解多維半透明介質(zhì)內(nèi)的輻射傳遞。
22 、one-order upwind───一階迎風(fēng)
23 、The carbon dioxide, lactic acid and other odors released from animal and human skins attract mosquito upwind flight to the source in the host seeking.───在吸血寄主搜尋中,人體和動物釋放的二氧化碳、乳酸以及其他氣味協(xié)同引誘蚊蟲向目標(biāo)氣味源定向飛行,最后找到吸血寄主。
24 、Numerical solution of three-dimensional Euler equations using multi-block and multi-grid computational methods was studied with finite volume method. Modified Van Leer upwind flux-vector-splitting method and MUSCL scheme were used.───全機(jī)三維復(fù)雜形狀繞流數(shù)值求解只能采用分區(qū)求解的方法,本文采用可壓縮Euler方程有限體積方法以及多重網(wǎng)格分區(qū)方法對流場進(jìn)行分區(qū)計算。
25 、The model of IPSA provided in PHOENICS is also adopted, a finite volume scheme is used in discretization of governing equations and upwind difference introduced in this paper.───本文計算中采用由PHOENICS提供的IPSA相間滑移算法模型,應(yīng)用有限體積法對方程進(jìn)行離散,并應(yīng)用迎風(fēng)格式計算。
26 、8 in 1979. There was an area of mesoscale convergence formed by the upper outflow of the cloud cluster and the environmental flow in the upwind.───擾動云團(tuán)的高空流出氣流和環(huán)境氣流在云團(tuán)的上風(fēng)方向形成中尺度輻合區(qū)。
27 、At the same time, based on the result, it is concluded that the upwind finite-difference scheme for solving the one-dimensional heat transfer equation for SG is stable.───同時,根據(jù)這個結(jié)果分析得到了求解蒸汽發(fā)生器一維傳熱方程的逆風(fēng)有限差分格式是穩(wěn)定的。
28 、A KIND OF UPWIND FINITE VOLUME ELEMENT METHOD FOR THE TRANSIENT BEHAVIOR OF A SEMICONDUCTOR DEVICE WITH HEAT CONDUCTION───熱傳導(dǎo)型半導(dǎo)體瞬態(tài)問題的迎風(fēng)有限體積元方法
29 、Second Order Upwind Difference Scheme for Three Dimensional Multicomponent Displacement Problem───三維多組分可壓縮驅(qū)動問題的迎風(fēng)差分格式
30 、A non-smoker among smokers will always be upwind.───不吸煙的老是坐在吸煙的下風(fēng)口。
31 、Those who take economic decisions and benefit from them are typically upwind those who bear the costs are downwind.───作出經(jīng)濟(jì)決策并從中受益的人顯然是占上風(fēng),而占下風(fēng)的人則要為此付出代價。
32 、The temperature uniformity of the surface of the FBSIHP and the influence in different working fluid filling, different working fluid and different air upwind velocities was tested in the paper.───測試了單管扁曲型集成熱管散熱器的均溫性以及不同充液量、不同工質(zhì)以及不同風(fēng)速對其傳熱性能的影響;
33 、THE MODIFIED UPWIND DIFFERENCE SCHEME FOR TWO PHASE MISCIBLE DISPLACEMENT WITH THE DIFFUSION COEFFICIENT BEING A MATRIX───**系數(shù)為矩陣形式的兩相混溶驅(qū)動問題的修正迎風(fēng)差分格式
34 、A modified upwind difference method for problem of contamination by incompressible nuclear waste───不可壓縮核廢料污染問題的修正迎風(fēng)差分法
35 、To avoid numerical diffusion caused by convection-dominated effect, the streamline upwind is introduced to modify the weighted function.───在有限元方程離散過程中,針對流動對流占優(yōu)的問題,引入對權(quán)函數(shù)的流線迎風(fēng)修正,有效地消除了高雷諾數(shù)流動計算中的數(shù)值震蕩。
36 、When the two boats crossed on the second upwind, there was only a half boat length between the two.───但我們也應(yīng)該注意到當(dāng)兩只船相交的時候,新西蘭也僅僅是落后半個船身的距離。
37 、Conduction heat transfer problems are solved with a cell-based finite volume method (FVM).The second upwind scheme and whole processing implicit iteration way are used.───摘要用基元有限容積方法,在非結(jié)構(gòu)化網(wǎng)格中離散和求解熱傳導(dǎo)方程,二階迎風(fēng)格式和全程隱式迭代求解穩(wěn)態(tài)導(dǎo)熱問題。
38 、upwind effect───上吹效應(yīng)
39 、2.The Guerilla II has great upwind performance.───游擊隊員II有巨大迎風(fēng)的表現(xiàn)。
40 、Variation Of Urban Momentum Roughness Length With Land Use In The Upwind Source Area, As Observed in Two U.K. Cities───兩個英國城市觀測到的上風(fēng)源區(qū)城市動量粗糙長度隨土地使用的變化
41 、CONSERVATIVE UPWIND FINITE ELEMENT METHOD FOR TWO-PHASE FLOW IN POROUS MEDIA───多孔介質(zhì)兩相流的守恒迎風(fēng)有限元法
42 、Equations of transport model of leachate for porous media and double media are given.Generalized upwind scheme is used to solve the transport model of leachate and to eliminate numerical dispersion.───本文通過對淋濾液運(yùn)移模型的研究,給出了多孔介質(zhì)和雙重介質(zhì)淋濾液運(yùn)移模型的定解問題,采用廣義迎風(fēng)格式求解淋濾液運(yùn)移模型,消除數(shù)值彌散。
43 、Frink, N.T., Parikh, P., and Pirzadeh, S., “A Fast Upwind Solver for the Euler Equations on Three-Dimensional Unstructured Meshes,” AIAA Paper 91-0102, 1991.───楊毅勇,"在四面體/稜鏡型網(wǎng)格上計算旋翼葉片黏性流場及噪音,"國立成功大學(xué)航空太空工程學(xué)系碩士論文,2005年,7月.
44 、Simulated accuracy of nonlinear convection diffusion equation by first order upwind difference scheme───一階迎風(fēng)差分格式求解非線性對流**方程的精度
45 、upwind difference formula───上風(fēng)差分公式
46 、UPWIND FINITE-DIFFERENCE SOLUTION OF EIKONAL EQUATION───地震波走時計算的逆風(fēng)差分算法
47 、streamline upwind───流線迎風(fēng)(算法)
48 、For capturing the unsteady shocklets are developed upwind compact scheme with group velocity control(GVC) and eighth order accurate GVC8 scheme.───構(gòu)造了湍流直接數(shù)值模擬的高精度高分辨率計算方法。
49 、The South China Sea (SCS) is the largest marginal sea of China, located upwind thesummer monsoon, and has dominant interannual variability as a marginal sea of thetropical Pacific Ocean.───南海作為我國最大的邊緣海,位于夏季風(fēng)氣流上游,同時,作為熱帶太平洋的邊緣海,具有顯著的年際變異特征。
50 、THE MODIFIED UPWIND FINITE DIFFERENCE METHOD FOR THREE DIMENSIONAL PROBLEM FOR THE TRANSIENT BEHAVIOR OF SEMICONDUCTOR WITH HEAT CONDUCTION───三維熱傳導(dǎo)型半導(dǎo)體器件瞬態(tài)問題的修正迎風(fēng)差分格式
51 、The resulting formulae of the above perturbation operation are higher-order upwind and central PFV schemes.───二階和四階中心PFV格式對網(wǎng)格Peclet數(shù)的任意值均為正型格式,比常用的二階中心格式優(yōu)越.
52 、A Modified Upwind Difference Scheme and Convergence Analysis for Problem of Contamination by Compressible Nuclear Waste───可壓縮核廢料污染問題的修正迎風(fēng)差分格式及收斂性分析
53 、Residents say they have been bothered for years by the fetid smell of one the farms, which lies upwind of the community, and they suspect their water and air has been contaminated by waste.───在該社區(qū)的逆風(fēng)方向有一家農(nóng)場。居民說,他們多年以來一直為該農(nóng)場的惡臭氣味所困,并懷疑農(nóng)場廢物污染了他們的用水和空氣。
54 、Probe Into the Technology of Relative Balance of the Yacht Body in Sail to Upwind and Planning on the Waves───前迎風(fēng)行駛中船體相對平衡和越涌浪技術(shù)探討
55 、There is a strong bad smell in the air even if you take care to be upwind of the cone.───即使你盡量逆風(fēng)對著火山錐也能聞到空氣中有一股強(qiáng)烈難聞的氣味。
56 、THE UPWIND DIFFERENCE METHOD FOR FIRST-ORDER HYPERBOLIC EQUATION───一階雙曲型方程的迎風(fēng)差分方法
57 、The control-equations were solved with upwind TVD algorithm and elemental chemical reaction model, with the point-implicit used to overcome the numerical stiffness of chemical reaction source term.───數(shù)值結(jié)果顯示,當(dāng)爆轟波平掠過惰性氣體界面時,形成了爆轟波、界面、透射激波以及稀疏波相互作用的現(xiàn)象。
58 、A Class of Upwind ENO Methods of Lines with Applications of Systems of Euler Equation───一類逆風(fēng)ENO線方法的構(gòu)造及其對Euler方程的應(yīng)用
59 、Keywords parabolic system;convection-diffusion;nonlinear;upwind;convergence analysis;numerical experimnet;───拋物型方程組;對流-**;非線性;迎風(fēng);收斂性分析;數(shù)值試驗;
60 、Upwind finite difference and ADI method have been adopted in simulating flood processing, and this method has greatly saved EMS memory and improved computational speed.───模型建立過程中采用有限差分法的逆風(fēng)格式離散控制方程 ,并用ADI方法求解代數(shù)方程組 ,模型計算速度快 ,節(jié)約計算內(nèi)存 ,基本可以滿足洪水實時預(yù)報要求
61 、I went two lengths over the lay line downwind, and the same upwind, which made us, lose 30 seconds each time.───在順風(fēng)航標(biāo)時我多計算了兩個船身的長度,迎風(fēng)時也一樣,這使我們每次操作都損失了30秒。
62 、Upwind Local Differential Quadrature Method for Solving Coupled Viscous Flow and Heat Transfer Equations───求解粘性流體和熱遷移聯(lián)立方程的迎風(fēng)局部微分求積法
63 、Numerical results for example problems show that these techniques are effective to solve convection-dominated problems, and the adaptive upwind meshless technique is the most effective method of all.───數(shù)值結(jié)果表明這4種技術(shù)均能有效地消除對流占優(yōu)時的數(shù)值偽振蕩現(xiàn)象,且自適應(yīng)迎風(fēng)無網(wǎng)格穩(wěn)定化方法是4種技術(shù)中最有效的。
64 、When about to engage in combat, determine the wind direction.If upwind, yell and charge in the direction of the wind, if contrary, maintain formation and wait for opportunity to attack.───臨戰(zhàn)前,還要觀測風(fēng)向,順風(fēng)時乘勢鼓噪而進(jìn),逆風(fēng)時就堅守陣地,待機(jī)破敵?!?/p>
65 、On the basis of study of numerical methods a new kind of implicit and upwind scheme was designed, a restrict theoretical proof shows the scheme is NND scheme.───數(shù)值實驗結(jié)果顯示,新格式具有較高的激波分辨能力,且是無波動的。
66 、modified upwind difference───修正迎風(fēng)差分
67 、Numerical Simulations of Eddy Field around Delta Wings Based on the Upwind Scheme───基于迎風(fēng)格式的三角翼渦流場數(shù)值模擬研究
68 、Let's get to windward of the smoke. or Let's go upwind of the smoke.───咱們到煙的上風(fēng)頭去吧。
69 、THE UPWIND FINITE DIFFERENCE METHOD FOR COMPRESSIBLE TWO-PHASE DISPLACEMENT PROBLEM───可壓縮兩相驅(qū)動問題的迎風(fēng)差分格式及其理論分析
70 、An upwind scheme based on the unstructured mesh is developed to solve ideal 2-D magnetohydrodynamics (MHD) equations.───摘要在非結(jié)構(gòu)網(wǎng)格上發(fā)展了針對二維理想磁流體方程組的逆風(fēng)格式求解方法。
71 、5. They may start moving upwind using optomotor stimulation and show positive anemotaxis.───它們憑借視覺刺激,可能開始逆風(fēng)飛行,表現(xiàn)出正趨風(fēng)性。
72 、You will find that the combination of a bigger board with a smaller kite enables you to ride more consistently and make turns with more precision - and usually it's possible to ride more upwind.───你將會發(fā)現(xiàn)結(jié)合大板跟小箏會讓你航行更一貫以及轉(zhuǎn)向更精準(zhǔn),還有通??梢院叫械母旓L(fēng)。
73 、and he's dying to eat the hot dogs that guy's carrying just upwind of him.─── 他非常想吃熱狗 一個人正拿著熱狗從他身邊走過
74 、So the staff ordered the next mission over Cologne to make its final approach upwind.───于是參謀部下令,接下來科隆上空的任務(wù)中,要讓飛機(jī)最后的轟炸航程逆風(fēng)進(jìn)行。
75 、A geologist, approaching cautiously from the upwind side, records the volcano's tantrum.───一位地質(zhì)學(xué)家小心翼翼地從逆風(fēng)處走近,記錄下火山的勃然大怒。
76 、They just stand upwind and drop their panties.─── 她們只要站在那里脫掉*就行
77 、106. For example, the artificial modification of rain at New York City may suggest a seeding activity just a few miles upwind of the metropolis.───比如說,對紐約市進(jìn)行人工降雨可能意味著在該市上風(fēng)不過幾英里處進(jìn)行一次撒播作業(yè)。
78 、Diffusion/convection form of PDE's in chemical engineering, characteristics and PDE types (elliptic, parabolic, hyperbolic), 1-D convection/diffusion problem with central vs. upwind finite differences───31化工中之**/對流PDE表示式,特征式型與PDE類型(橢圓形,拋物線形,雙曲線形),解1-D對流/**問題--中心差分對上風(fēng)差分
79 、Roe's upwind───Roe迎風(fēng)型離散
80 、English: 106. For example, the artificial modification of rain at New York City may suggest a seeding activity just a few miles upwind of the metropolis.───中文:比如說,對紐約市進(jìn)行人工降雨可能意味著在該市上風(fēng)不過幾英里處進(jìn)行一次撒播作業(yè)。
81 、The spectral element method based on streamline upwind Petrov-Galerkin (SUPG) stabilization scheme was developed to solve multidimensional radiative heat transfer in semi-transparent media.───本文發(fā)展了基于流向迎風(fēng)彼得羅夫-伽遼金(SUPG)格式的譜元法來求解多維半透明介質(zhì)內(nèi)的輻射傳遞。
82 、quadratic upwind interpolation of convective kinematics scheme───QUICK格式
83 、Upwind Difference Method for Solving the Pricing Problem of Asian Option───求解亞式期權(quán)定價問題的迎風(fēng)差分方法
機(jī)場中的長五邊,短五邊是什么意思
長五邊:當(dāng)航空器在距接地點7公里(4海里)以上轉(zhuǎn)向第五邊時,或當(dāng)直線進(jìn)近的航空器距接地點15公里(8海里)時,報告“l(fā)ong final (長五邊)”
短五邊:根據(jù)ICAO文件,以此推理,“short final”就是指航空器在距接地點小于7公里(4海里)時做的報告。
擴(kuò)展資料:
五邊分別為:
一邊(離場邊)
二邊(側(cè)風(fēng)邊)
三邊(下風(fēng)邊)
四邊(基線邊)
五邊(最后進(jìn)近)
五邊飛行步驟:
假設(shè)由09跑道(航向090)起飛,飛行高度為 1000尺。
1、起飛后,機(jī)師就會進(jìn)入 Upwind (離場邊)。
2、維持航向,當(dāng)爬升至500尺,左轉(zhuǎn)90度,進(jìn)入 Crosswind (側(cè)風(fēng)邊)。
3、維持航向,繼續(xù)爬升至1000尺。到達(dá)1000尺時,向左轉(zhuǎn)90 度,進(jìn)入 Downwind (下風(fēng)邊)。
4、維持航向及高度(1000尺),航向為 270 并和跑道成一條平行線,反方向于離場跑道。此時,機(jī)師需要進(jìn)行降落檢查,并向航管員表示進(jìn)入 Downwind,要求飛行意向(在此為降落)。經(jīng)航管員指示后,機(jī)師可以開始減速左轉(zhuǎn)90度并開始下降,進(jìn)入Base (底線)。
5、進(jìn)入下降階段,航向為 180,調(diào)至進(jìn)場速度,再左轉(zhuǎn) 90 度,就進(jìn)入 Final (最后進(jìn)場邊)。
6、機(jī)師已經(jīng)可以見到跑道在正前方,準(zhǔn)備降陸。
機(jī)場中的長五邊,短五邊是什么意思
五邊飛行是飛行員一課重要的訓(xùn)練,其主要是圍著機(jī)場進(jìn)行,從五邊飛行中,機(jī)師可以練習(xí)到起飛,爬升,爬升轉(zhuǎn)向,定向,保持高度平飛,下降,下降轉(zhuǎn)向,降落。所以初學(xué)機(jī)師很適合進(jìn)行五邊飛行的練習(xí),從而提高自己對飛機(jī)的控制。
一般我們會用小型機(jī)來作這個練習(xí),如 cesana 172, 152......, 因為比較易於控制,速度亦不會太快,以下將會解釋五邊飛行要注意的地方:
學(xué)習(xí)五邊飛行一般五邊飛為一個長方型環(huán)繞著機(jī)場的航線,我們多數(shù)會在起飛後向左轉(zhuǎn),爬升及保持在1000ft (AGL) (1000 ft AAL, Above Aerodrome Level)
假設(shè)我們在36跑道起飛,機(jī)場正向著360度,起飛後我們便會進(jìn)入
"Upwind(離場邊)":當(dāng)飛行員起飛後立即會進(jìn)入
"Upwind(離場邊)",然後保持跑道航向360爬升至500ft (AGL),左轉(zhuǎn)90度,接著進(jìn)入;
"Crosswind(側(cè)風(fēng)邊)":繼續(xù)爬升并在航向090,到達(dá)1000ft(AGL)向左轉(zhuǎn)90進(jìn)入;
"Downwind(下風(fēng)邊)":在此時你應(yīng)該在1000ft (AGL)并保持高度(正負(fù)50ft),航向為180并和跑道成一條平行線,反方向於離場跑道。在這開始降落檢查,告知航管員你正在 Downwind并表示你的意向(如.Request full stop landing要求降落)。開始減速左轉(zhuǎn)90度并開始下降,然後進(jìn)入;
"Base(底線)":這時已在下降階段,航向270,進(jìn)場速度,再左轉(zhuǎn)90度,便進(jìn)入:
"Final(最後進(jìn)場邊)":此時你應(yīng)該很接近跑道,并準(zhǔn)備來一個安全的著陸。
重點: 要注意進(jìn)行五邊飛行時龍和機(jī)場保持較接近的距離(大約在 2海浬內(nèi)),因為在這個范圍如遇上機(jī)件問題,你亦可以進(jìn)行滑翔回機(jī)場盡量控制高度於正負(fù)50ft內(nèi),這樣可以提高你對高度的控制技術(shù)可能進(jìn)行一些Touch And Go的練習(xí)(著陸後立即再起飛),但要留意請先向航管員申請
以下將解述在不同的方法進(jìn)入機(jī)場航線的方法,我們簡分為6個不同的方向:
航機(jī)1: 繼在 10000ft (AGL)的高度并進(jìn)入Crosswind(側(cè)風(fēng)邊),跟著進(jìn)行五邊飛行再和航管聯(lián)絡(luò)告知意向。
航機(jī)2: 繼在 10000ft (AGL)的高度并進(jìn)入Crosswind(側(cè)風(fēng)邊),跟著進(jìn)行五邊飛行再和航管聯(lián)絡(luò)告知意向。
航機(jī)3: 繼在 10000ft (AGL)的高度并進(jìn)入Crosswind(側(cè)風(fēng)邊),跟著進(jìn)行五邊飛行再和航管聯(lián)絡(luò)告知意向或如果機(jī)場繁忙時在1500ft (AGL)或航管員所給的高度越機(jī)場上空進(jìn)入Upwind(離場邊),再下降到1000FT (AGL)進(jìn)入Crosswind(側(cè)風(fēng)邊)。
航機(jī)4: 約在 1000ft (AGL)的高度并進(jìn)入Downwind(下風(fēng)邊),跟著進(jìn)行五邊飛行再和航管聯(lián)絡(luò)告知意向。
航機(jī)5: 進(jìn)入Base(底線),跟薯和航管聯(lián)絡(luò)告知意向并準(zhǔn)備下降及著陸。
航機(jī)6: 進(jìn)行直接進(jìn)場(Straight In Fianl)或如果機(jī)場繁忙時在1500ft (AGL)或航管員所給的高度飛越機(jī)場上空進(jìn)入Upwind(離場邊),再下降到1000FT(AGL)進(jìn)入Crosswind(側(cè)風(fēng)邊)。
重點: 以上是一般目視飛行時采用的進(jìn)入機(jī)場航線方法,實際進(jìn)場須要以航管員的指令為準(zhǔn)。
學(xué)院學(xué)習(xí)的時候我記得小于4NM是短五邊,距離10NM的點是長五邊點.機(jī)組有時要求直飛長五邊點,就是這個點.長五邊我個人理解,只要是它和正常起落航線五邊長度的比較,比它長的就是長五邊,比它短的就是短五邊.有沒有飛行的朋友,發(fā)表一下意見吧!
弄清五邊的概念前,先說明一下起落航線的五邊,起飛后,沿跑道方向上升不低于100米,夜間為150米,此時為一邊,到達(dá)此高度時可以進(jìn)行一轉(zhuǎn)彎,轉(zhuǎn)彎角度為90度,到達(dá)二邊,依次類推,第四次轉(zhuǎn)彎后,到達(dá)的就是5邊,此時的方向應(yīng)該與一邊的航向是相同的。長五邊是相對正常的起落航線而言的,因為每個型號的飛機(jī)的起落航線數(shù)據(jù)是相同的,那么五邊的長度一致是相等的。長五邊的意思就是比正常的起落航線的五邊長,使長五邊,需要滿足一定的條件,才可以使用長五邊落地。短五邊一般好象不提這事,五邊過短,動作多而緊湊,對安全不利。在實際工作中,我是不用短五邊的。
長五邊一般為繁忙機(jī)場設(shè)計,為了在最后航段安排更多的飛機(jī),一般的支線機(jī)場根據(jù)地形等情況限制設(shè)計較為合適的五邊長度,如無限制因素10NM的五邊長度較優(yōu)。
如果飛行員技術(shù)過硬,運(yùn)用短五邊目視進(jìn)近可以縮短飛行距離,節(jié)省燃油,縮短對五邊的占用時間,減小對其后邊進(jìn)近飛機(jī)的影響,從而提高空域的使用效率。
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