图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
国际流体力学研究期刊
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN 打印: 2152-5102
ISSN 在线: 2152-5110

国际流体力学研究期刊

DOI: 10.1615/InterJFluidMechRes.v32.i3.50
pages 310-326

Large Eddy Simulation of Flow Past Built-In Winglet-Pair in a Rectangular Channel

J. Srikanth
Department of Aerospace Engineering, IIT Madras, 600036, India
Gautam Biswas
Department of Mechanical Engineering, Indian Institute of Technology Guwahati, 781039 India
Assciate Editor of Journal of Heat Transfer (ASME)

ABSTRACT

In the present investigation the complex flow past a delta winglet-pair placed in a rectangular channel is studied numerically using the Large eddy Simulation (LES) approach. The Reynolds number based on the channel height and inlet velocity is 10000. A grid of 165 × 45 × 95 is used. The code is based on Marker and Cell algorithm with third order upwind scheme for the convective term. The computed results are compared with experimental data at Reynolds number of 134000. The Reynolds number in computation is lower due to limitation of computing resources but the computations are able to capture the essential features and show qualitative agreement with experimental data. Computation show that the longitudinal velocities generated by the winglet-pair disrupt the growth of boundary layer and would serve ultimately to bring about enhancement of heat transfer between fluid and neighboring surface. Many features of flow, which are difficult to measure experimentally, can be obtained from the LES study.


Articles with similar content:

NUMERICAL SIMULATION OF THREE-DIMENSIONAL SEPARATED FLOW AND HEAT TRANSFER AROUND STAGGERED SURFACE-MOUNTED RECTANGULAR BLOCKS IN A CHANNEL
ICHMT DIGITAL LIBRARY ONLINE, Vol.11, 2004, issue
Terukazu Ota, Hideki Yanaoka, Madoka Nakajima, Hiroyuki Yoshikawa
RECENT PROGRESS IN COMPUTATIONAL STUDIES OF DISPERSE BUBBLY FLOWS
Multiphase Science and Technology, Vol.18, 2006, issue 3
J. Lu, S. Biswas, S. Homma, Gretar Tryggvason, A. Esmaeeli
LARGE EDDY SIMULATION OF A SYMMETRIC BUMP ON STRUCTURED AND UNSTRUCTURED GRIDS, COMPARISONS WITH RANS AND T-RANS MODELS
TSFP DIGITAL LIBRARY ONLINE, Vol.4, 2005, issue
Sofiane Benhamadouche, Juan Uribe, Nicolas Jarrin, Dominique R. Laurence
COMPARISON OF TURBULENT BOUNDARY LAYERS AND CHANNELS FROM DIRECT NUMERICAL SIMULATION
TSFP DIGITAL LIBRARY ONLINE, Vol.6, 2009, issue
Mark P. Simens, Javier Jimenez, Sergio Hoyas, Yoshinori Mizuno
Numerical simulation of turbulent flow and heat transfer over rotating disks using a hybrid LES-RANS method
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2018, issue
Johann Turnow, Nikolai Kornev, L. Kappis