Rotor wake capture improvement based on high-order spatially accurate schemes an

排行榜 收藏 打印 发给朋友 举报 来源: 《Applied Mathematics and Mechanics》 发布者:cjk3d
热度14票 浏览21次 【共0条评论】【我要评论 时间:2012年4月25日 20:36
水利论文p+~ ryL3kQ)N

Rotor wake capture improvement based on high-order spatially accurate schemes and chimera grids


i{ R ?5xX7@d0Abstract:A high-order upwind scheme has been developed to capture the vortex wake of a helicopter rotor in the hover based on chimera grids.In this paper,an improved fifth-order weighted essentially non-oscillatory (WENO) scheme is adopted to interpolate the higher-order left and right states across a cell interface with the Roe Riemarm solver updating inviscid flux,and is compared with the monotone upwind scheme for scalar conservation laws (MUSCL).For profitably capturing the wake and enforcing the period boundary condition,the computation regions of flows axe discretized by using the structured chimera grids composed of a fine rotor grid and a cylindrical background grid.In the background grid,the mesh cells located in the wake regions are refined after the solution reaches the approximate convergence.Considering the interpolation characteristic of the WENO scheme,three layers of the hole boundary and the interpolation boundary are searched.The performance of the schemes is investigated in a transonic flow and a subsonic flow around the hovering rotor.The results reveal that the present approach has great capabilities in capturing the vortex wake with high resolution,and the WENO scheme has much lower numerical dissipation in comparison with the MUSCL scheme.水利论文]o0o-zJ

水利论文(m ^(}Mn*MxS9J


"D o8SYE#M&J'hD0 水利论文Z/E8fbS)uaVZ



水利论文;G&if} s+sh/F

Li XU[1] Pei-fen WENG[2]水利论文7C S)r+UZZZi%^[+E

水利论文x$G]&{/b J`


gc yFWd)E-SD0 水利论文K0[ Zo s,m&x*S

School of Mathematics and Physics, Shanghai University of Electric Power,Shanghai 200090, P. R. China;Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University, Shanghai 200072, P. R. China

7T6z"dw.h!^)YN0 水利论文M:z1tS-Zk$Z?

期 刊:水利论文Y5z9P$z(\(`'s


ZLy q4y#u0 水利论文Z W5Z*Wf'K'P&g6[B

Journal:水利论文ju Mk9q:}"Z(B

9x!U)[2q8W{.T$x ]0Applied Mathematics and Mechanics

q%yd L7n)R [#S0 水利论文D!l8_){G"g P


qdD7Y%}F#OI0 水利论文9uu`3DNS^

2011, 32(12)

zxndn&n f5O0 水利论文p:foTl:g)?B1f


4_0V1q@5XeU$s0 水利论文 R,m4KAG*C

V211.3水利论文Y z}xe.Qa




F5x&m;_3e6Cb)k0hovering rotor,vortex wake

YHskh y/P!}5_C0

R ?}M'OH7F0Navier-Stokes equation水利论文H/pod0^


chimera grid水利论文 e8tz _W,e l


weightedessentially non-oscillatory (WENO) scheme

A:}\!] i w0 水利论文6X/F\sB%T


水利论文%TII%h#{-y Sh^

TP3 O1水利论文[j~.V}o2s j&S



yQYHiqx O0 水利论文/W9n ~9mw0Ce6B6] H"eY

background grid upwind scheme WENO scheme numerical dissipation boundary condition conservation laws helicopter rotor high resolution transonic flow capabilities performance comparison interface improved approach results three paper cells based

q@*m2SA#\6F]-N @Q0

I(~M |[|5q:S;t0基金项目:

:ai/f:rM9C7U&p0 水利论文6uE Dm Ta mr,H

the National Natural Science Foundation of China水利论文b5I*aJ!T\v6Q u

7GSY#GG Y#~,S[Vgs1l0返回顶部互动百科相关词

下一篇:Boundary-layer non-Newtonian flow over vertical plate in porous medium saturated
上一篇:Laguerre-Gausscollocation method for initial value problems of second order ODEs