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Title: On the numerical near-wall corrections of single hot-wire measurements
Authors: Chew, Y.T. 
Shi, S.X.
Khoo, B.C. 
Keywords: hot wire
near-wall corrections
wall effects
Issue Date: Dec-1995
Citation: Chew, Y.T.,Shi, S.X.,Khoo, B.C. (1995-12). On the numerical near-wall corrections of single hot-wire measurements. International Journal of Heat and Fluid Flow 16 (6) : 471-476. ScholarBank@NUS Repository.
Abstract: The present paper numerically investigates the near-wall correction of velocity readings when using hot wires to measure the flows very close to walls. It is found that the near-wall correction is necessary not only for the conducting wall but also for the adiabatic wall. For an infinitely long 5-μm diameter hot wire, measurement error begins to appear at Y+ < 5 for an infinitely conducting wall and at Y+ < 2 for an adiabatic wall. In addition to the distance from wall, the wire diameter also exerts significant influence on the velocity measurements. However, provided the flow is two-dimensional (2-D), the effect of operating overheat ratio seems to be insignificant. © 1995.
Source Title: International Journal of Heat and Fluid Flow
ISSN: 0142727X
Appears in Collections:Staff Publications

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