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Experimental investigation of submarine hydrodynamic derivatives using wind tunnel model tests
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Hong-wei LI1, Zhao-hui CAO2, Sheng-xi WU1
Journal of Ship Mechanics | 2026, 30(4) : 532 - 546
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Journal of Ship Mechanics | 2026, 30(4): 532-546
• Hydrodynamics •
Experimental investigation of submarine hydrodynamic derivatives using wind tunnel model tests
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Hong-wei LI1, Zhao-hui CAO2, Sheng-xi WU1
Affiliations
  • 1.College of Shipbuilding and Engineering, Harbin Engineering University, Harbin 150001, China
  • 2.CRRC Qingdao Sifang Locomotive and Rolling Stock Co., Ltd., Qingdao 266109, China
Published: 2026-04-15 doi: 10.3969/j.issn.1007-7294.2026.04.003
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To investigate the feasibility of determining submarine hydrodynamic derivatives through wind tunnel experiments, this study focuses on the SUBOFF AFF-8 model proposed by the David Taylor Model Basin (DTMB). Using the linear and rotary oscillation mechanisms equipped in the FL-10 wind tunnel of Harbin Aerodynamics Research Institute, AVIC, wind tunnel tests were conducted to obtain the hydrodynamic derivatives in the vertical plane of the SUBOFF AFF-8 model. A data processing method for evaluating submarine vertical-plane hydrodynamic derivatives based on wind tunnel testing is proposed. The validation results indicate that the hydrodynamic coefficients obtained from the wind tunnel tests exhibit trends consistent with those from the DTMB measurements. For the hydrodynamic coefficients used in vertical-plane maneuvering and stability predictions, the discrepancies are all within 10% except the pitch moment coefficient with respect to angular velocity. This demonstrates the feasibility of the experimental principle and methodology. The work lays a technical foundation for further studies on wind tunnel test methods for submarine hydrodynamic derivatives at large angles of attack.

wind tunnel model test  /  SUBOFF AFF-8  /  hydrodynamic coefficient  /  dynamic derivative
Hong-wei LI, Zhao-hui CAO, Sheng-xi WU. Experimental investigation of submarine hydrodynamic derivatives using wind tunnel model tests[J]. Journal of Ship Mechanics, 2026 , 30 (4) : 532 -546 . DOI: 10.3969/j.issn.1007-7294.2026.04.003
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Year 2026 volume 30 Issue 4
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Article Info
doi: 10.3969/j.issn.1007-7294.2026.04.003
  • Receive Date：2025-10-30
  • Online Date：2026-07-07
  • Published：2026-04-15
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  • Received：2025-10-30
Affiliations
    1.College of Shipbuilding and Engineering, Harbin Engineering University, Harbin 150001, China
    2.CRRC Qingdao Sifang Locomotive and Rolling Stock Co., Ltd., Qingdao 266109, China
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