Quarterly Report (Reporting Period January 15, 2003 through April 15, 2003)

McCallen, R ; Salari, K ; Ortega, J ; Browand, F ; Hammache, M ; Hsu, T-Y ; Arcas, D ; Leoard, A ; Chatelain, P ; Rubel, M ; Roy, C ; DeChant, L ; Hassan, B ; Ross, J ; Satran, D ; Walker, S ; Heineck, J T ; Pointer, D ; Sofu, T

Lawrence Livermore National Laboratory

关键词: Recommendations;    Geometry;    Design;    Simulation;    29 Energy Planning, Policy And Economy;   

DOI  :  10.2172/15007679
RP-ID  :  UCRL-ID-153421
RP-ID  :  W-7405-ENG-48
RP-ID  :  15007679

美国|英语

来源: UNT Digital Library

【 摘 要 】

Summaries of the activities and accomplishments during this second quarter reporting period for each of the consortium participants are given. Some of the highlights for this reporting period include: Even without the forcing speaker, the ''Mozart'' device on the GCM geometry provides over 20% reduction in drag at 0 degree yaw and above 25% reductions at higher yaw angles; Experiments and computations guide a conceptual design for reduction of drag due to tractor-trailer gap flow; RANS simulations for the GTS geometry are being finalized for development of clear modeling guidelines with RANS; Simulations on the GCM geometry have begun; and Vortex methods have improved techniques for the treatment of vorticity near surfaces.