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Calculation of Flows Over Underwater Bodies with Hull, Sail and Appendages

Abstract

A comprehensive study has been made for the hydrodynamic analysis of the submarine DARPA 2. The analysis was first performed for hull, then hull with sail on top and then for the complete submarine including hull, sail and appendages. A comparison of tangential velocity and pressure distribution for hull is accomplished using CFD flow solvers and published data. Further, the pressure distribution over the hull with sail is also analyzed. Finally, pressure distribution, forces and moments were calculated over the complete submarine including hull, sail and appendages. Comparison 01 pressure distribution and tangential velocity for the hull show a good agreement with published data. Pressure coefficient comparison for the hull with sail shows the good CFD-CFD agreement. Comparison of Normal force and pitching moment of complete submarine having hull, sail and appendages shows a reasonable agreement with the experimental results of DARPA 2. Both quantitative and qualitative analysis of the complete submarine estimates the required design force and moment at different angles of attack and also demonstrate the flow visualization. (author)
Authors:
Shoab, M; Ayub, M; Bilal, S; Zahir, S; Khan, M A [1] 
  1. National Engineering and Scientific Commission, Islamabad (Pakistan)
Publication Date:
Jul 01, 2004
Product Type:
Conference
Resource Relation:
Conference: 3. International Bhurban conference on applied sciences and technology, Islamabad (Pakistan), 7-12 Jun 2004; Other Information: PBD: 2004; Related Information: In: Proceedings of international Bhurban conference on applied sciences and technology v. 1, by Hoorani, H.R.; Munir, A.; Samar, R.; Kayani, J.K.; Khan, M.A. (eds.), 500 pages.
Subject:
42 ENGINEERING; FLOW RATE; FLUID FLOW; HYDRODYNAMICS; NUMERICAL ANALYSIS; SAILS; SUBMARINES; TURBULENT FLOW
OSTI ID:
20618800
Research Organizations:
National Centre for Physics, Quaid-i-Azam Univ., Islamabad, (Pakistan)
Country of Origin:
Pakistan
Language:
English
Other Identifying Numbers:
TRN: PK0500180062298
Submitting Site:
INIS
Size:
page(s) 387-396
Announcement Date:
Aug 21, 2005

Citation Formats

Shoab, M, Ayub, M, Bilal, S, Zahir, S, and Khan, M A. Calculation of Flows Over Underwater Bodies with Hull, Sail and Appendages. Pakistan: N. p., 2004. Web.
Shoab, M, Ayub, M, Bilal, S, Zahir, S, & Khan, M A. Calculation of Flows Over Underwater Bodies with Hull, Sail and Appendages. Pakistan.
Shoab, M, Ayub, M, Bilal, S, Zahir, S, and Khan, M A. 2004. "Calculation of Flows Over Underwater Bodies with Hull, Sail and Appendages." Pakistan.
@misc{etde_20618800,
title = {Calculation of Flows Over Underwater Bodies with Hull, Sail and Appendages}
author = {Shoab, M, Ayub, M, Bilal, S, Zahir, S, and Khan, M A}
abstractNote = {A comprehensive study has been made for the hydrodynamic analysis of the submarine DARPA 2. The analysis was first performed for hull, then hull with sail on top and then for the complete submarine including hull, sail and appendages. A comparison of tangential velocity and pressure distribution for hull is accomplished using CFD flow solvers and published data. Further, the pressure distribution over the hull with sail is also analyzed. Finally, pressure distribution, forces and moments were calculated over the complete submarine including hull, sail and appendages. Comparison 01 pressure distribution and tangential velocity for the hull show a good agreement with published data. Pressure coefficient comparison for the hull with sail shows the good CFD-CFD agreement. Comparison of Normal force and pitching moment of complete submarine having hull, sail and appendages shows a reasonable agreement with the experimental results of DARPA 2. Both quantitative and qualitative analysis of the complete submarine estimates the required design force and moment at different angles of attack and also demonstrate the flow visualization. (author)}
place = {Pakistan}
year = {2004}
month = {Jul}
}