Experimental study of turbulent axisymmetric cavity flow

✍ Scribed by D. H. Lee; H. J. Sung

• Publisher: Springer
• Year: 1994
• Tongue: English
• Weight: 914 KB
• Volume: 17
• Category: Article
• ISSN: 0723-4864
• DOI: 10.1007/bf00203047

✦ Synopsis

An experimental study is made of turbulent

Re axisymmetric cavity flow. The flow configuration consists of a sudden expansion and contraction pipe joint. In using the LDV Ri system, in an effort to minimize refraction of laser beams at the curved interface, a refraction correction formula for the t Reynolds shear stress is devised. Three values of the cavity T1 length (L =3oo, 6o0 and 9oo mm) are chosen, and the cavity U height (H) is fixed at 55 mm. Both open and closed cavities are U~ considered. Special attention is given to the critical case Uref L = 6OO mm, where the cavity length L is nearly equal to the reattachment length of the flow. The Reynolds number, based on the inlet diameter (D = 11o mm) is 73,ooo. Measurement data are presented for the static wall pressure, mean velocity profiles, vorticity thickness distributions, and turbulence quantities.