The effect of slot height and difference in gas densities for coaxial jets on jet mixing in constrained swirled flowВ
N.E. Shishkin
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
E-mail: shishkin@itp.nsc.ru
Keywords: swirled gas film cooling, gas concentration at wall, nonisothermal flows, constrain factor
Pages: 427–433
Abstract
Experiments were conducted about the effect of height of annular slot on efficiency of film cooling in a tube flow. Nonisothermal nature of flows was modelled by mixing of jets with different densities: air with argon or with helium: the concentration of foreign gas on wall was measured. The influence of nearwall jet swirling and of proportions of densities of gas flows as key factors for laminarization of mixing was considered.
DOI: http://dx.doi.org/10.1134/S0869864315040034
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