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A Novel Pumping Mechanism of Using Ultrasound Induced Pressure and Cavitations for Micro-Pump Development

Research Project

Project/Area Number 24656151
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Dynamics/Control
Research InstitutionYamagata University

Principal Investigator

NAKANISHI Tameo  山形大学, 理工学研究科, 准教授 (10235799)

Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords超音波ポンプ / 揚水メカニズム / キャビテーション雲
Research Abstract

We have developed a new pumping method of using ultrasound induced pressure differences and cavitations. An ultrasonic vibrating surface is fabricated at the bottom of a water tank. Standing waves of half wavelength are formed between the vibrating surface and the water surface. A vertical rising pipe of small inner diameter of 0.37mm is inserted in the water in a depth of 1/4 wavelength. Micro-bubble cloud is formed around the rising pipe inlet, which suppresses the negative pressure in the vibrating cycle and results in continuous pumping of water. The mechanisms and fundamental characteristics have been explored by experimental investigations. A pumping pressure of over 23kPa and a maximum flow rate of 10 ml/min were achieved. A prototype of micro-pump has been developed.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (2 results)

All 2013

All Presentation (2 results)

  • [Presentation] A Novel Pumping Mechanism of Using Ultrasound Induced Pressure and Cavitations2013

    • Author(s)
      Tameo Nakanishi, Yuki Numazawa
    • Organizer
      Proc. 10th Int. Conf. on Fluid Dynamics
    • Place of Presentation
      Sendai
    • Related Report
      2013 Final Research Report
  • [Presentation] A Novel Pumping Mechanism of Using Ultrasound Induced Pressure and Cavitations2013

    • Author(s)
      Tameo Nakanishi, Yuki Numazawa
    • Organizer
      Tenth International Conference on Flow Dynamics (ICFD2013)
    • Place of Presentation
      仙台国際センター(仙台市)
    • Related Report
      2013 Annual Research Report

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Published: 2013-05-31   Modified: 2019-07-29  

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