Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
권호 표지
DOI QR코드

DOI QR Code

Measurement of Performance of High Speed Underwater Vehicle with Solid Rocket Motor(II)

로켓추진을 이용한 고속 수중운동체의 수중 주행성능 측정 결과(II)

  • Received : 2017.06.03
  • Accepted : 2017.11.14
  • Published : 2018.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

A natural cavitation-type high-speed underwater vehicle with solid rocket motor is tested, and its speed and running distance are measured. The outputs from pressure sensors on the surface of the vehicle reveal a pressure-time history reflecting the development of supercavitation. Underwater cameras installed on the wall of the test pool record the entire process from the onset of supercavitation to its full development. CNU-SuperCT, based on two-dimensional inviscid theoretical analysis, is used to simulate test results. Considering CNU-SuperCT does not include the control fins of the vehicle, simulation results agree with test results very well. Additionally, pictures from underwater cameras support the test results.

고체 로켓추진기관을 이용한 자연공동형 수중운동체를 수중주행 시험하였다. 수중운동체의 속도 및 주행거리를 측정하고, 수중운동체 표면에 설치한 압력센서로 초공동의 발달에 따른 표면 압력 변화를 조사하였고, 수중카메라로 수중운동체에 초공동이 발생하여 진행하는 과정을 기록하였으며, 이를 이차원 비점성 이론해석법에 근거한 CNU-SuperCT 프로그램을 사용하여 계산한 시뮬레이션 결과와 비교하였다. CNU-SuperCT 프로그램은 수중운동체의 조종면을 포함하지 않고 계산하는 것을 고려하면, 시뮬레이션 결과와 측정결과가 잘 맞는다고 판단되며, 수중촬영결과도 이와 동일한 결과를 보인다.

Keywords

References

  1. Lee, E.T., Yu, Y.J. and Yoon, H.G., "Experimental Results of High Speed Natural Supercavitating Underwater Vehicle," 2015 KSPE Spring Conference, Busan, Korea, pp. 811-813, May 2015.
  2. Lim, S., Park, H.H., Kim, S.S., Cho, S.H. and Yoon, H.G., "Performance Analysis of High Speed Underwater Vehicle by Using Solid Rocket Motor," 2016 KIMST Spring Conference, Jeju, Korea, pp. 27, Jun. 2016.
  3. Yoon, H.G., Yu, Y.J., Lee, H.N., Lim, S., Park, H.H., "Measurement of Performance of High Speed Underwater Vehicle by Using Solid Rocket Motor," 2016 KSAS Fall Conference, Jeju, Korea, pp. 1154-1155, Nov. 2016.
  4. Kim, H.T., Lee, C.S. and Ahn, B.K., "1st Stage Final Report of the Incorporative Research on Supercavitating Underwater Vehicles (Cavitator Design and Flow Analysis)," ADD Reprort, pp. 9-57, 2011.