The Experimental Study on Mixing Characteristics in a Square Subchannel Geometry with Typical Flow Deflectors

• Published in: Heat transfer engineering Vol. 29; no. 8; pp. 695 - 703
• Main Authors: Chang, Seok Kyu, Moon, Sang Ki, Baek, Won-Pil, Chun, Tae Hyun
• Format: Journal Article
• Language: English
• Published: Philadelphia, PA Taylor & Francis Group 01.08.2008; Taylor & Francis
• Subjects: Applied sciences; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Fission nuclear power plants; Fluid dynamics; Fundamental areas of phenomenology (including applications); Installations for energy generation and conversion: thermal and electrical energy; Instrumentation for fluid dynamics; Physics; Turbulent flow; Swirling flow; Rod bundle; Test facility; Doppler laser anemometer; Speed measurement; Thermohydraulics; Deflector; Experimental study; Turbulent mixing; Turbulence structure; Nuclear reactor

The lateral flow structures in a subchannel geometry were carefully examined in an enlarged 5 × 5 rod bundle array by using a two-color LDA system. The detailed measurement data of lateral velocities in subchannels have been obtained as fabricating the rod bundle array 2.6 times larger than the real...