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An oscillating hot-wire technique for resolving the magnitude and direction of velocity measurements using single hot-wire sensors

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Abstract

Thermal anemometry is a classic flow-velocity measurement technique that is known to suffer from the inability to discern the flow direction. The current paper describes an innovative approach whereby an oscillating hot wire is used to extract velocity direction and magnitude information from single hot-wire measurements. It is shown that the new sensor operates in one of two modes depending on the velocity amplitude of the wire oscillation. Furthermore, results from applying the technique to measure the phase-averaged velocity in an oscillating pipe flow experiment are presented. The results from the hot-wire measurements show good agreement with those from laser Doppler velocimetery measurements in the same facility.

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References

  • Bradbury LJS, Castro IP (1971) A pulsed-wire technique for velocity measurements in highly turbulent flows. J Fluid Mech 49:657–691

    Google Scholar 

  • Coles D, Wadcock A (1979) Flying hot-wire study of flow past an NACA 4412 airfoil at maximum lift. AIAA J 17:321–329

    Google Scholar 

  • Downing PM (1972) Reverse flow sensing hot wire anemometer. J Phys E Sci Instrum 5:849–851

    Article  CAS  Google Scholar 

  • Eaton JK, Jeans AH, Ashjaee J, Johnston JP (1979) A wall-flow-direction probe for use in separating and reattaching flows. J Fluids Eng 101:364–366

    Google Scholar 

  • Moulin AM, Gaster M, Woodburn CN, Barnes JR, Welland ME (1997) A directionally sensitive hot-wire anemometer. Exp Fluids 22:458–462

    Article  Google Scholar 

  • Schober M, Hancock PE, Siller H (1998) Pulsed-wire anemometry near walls. Exp Fluids 25:151–159

    Article  Google Scholar 

  • Spazzini PG, Iuso G, Onorato M, Zurlo N (1999) Design, test and validation of a probe for time-resolved measurement of skin friction. Meas Sci Technol 10:631–639

    Article  CAS  Google Scholar 

  • Thompson BE, Whitelaw JH (1984) Flying hot-wire anemometry. Exp Fluids 2:47–55

    Google Scholar 

  • Watmuff JH, Perry AE, Chong MS (1983) A flying hot-wire system. Exp Fluids 1:63–71

    Google Scholar 

  • Westphal RV, Eaton JK, Johnston JP (1981) A new probe for measurement of velocity and wall shear stress in unsteady reversing flows. J Fluids Eng 103:478–482

    Google Scholar 

Download references

Acknowledgement

The authors would like to acknowledge the graciousness of Dr. Harold Shock, director of the Engine Research Laboratory at MSU, for making available the oscillating pipe flow facility and LDV system. Thanks are also due to Dr. Giles Brereton for his initial suggestion to make use of the oscillating flow facility to demonstrate the sensor concept. Furthermore, the help of Edward Timm and Yuan Shen in running the facility and acquiring the LDV data is greatly appreciated. This work was supported by an IRGP grant from MSU as well as a grants from Michigan Economic Development Corporation (grant number GR-290) and National Science Foundation (CTS-0116907).

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Authors and Affiliations

  1. Mechanical Engineering Department, Michigan State University, East Lansing, MI 48824, USA

    Y. Li & A. Naguib

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  1. Y. Li
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  2. A. Naguib
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Correspondence to A. Naguib.

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Li, Y., Naguib, A. An oscillating hot-wire technique for resolving the magnitude and direction of velocity measurements using single hot-wire sensors. Exp Fluids 34, 597–606 (2003). https://doi.org/10.1007/s00348-003-0596-y

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  • DOI: https://doi.org/10.1007/s00348-003-0596-y

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