DRAG REDUCTION OF UUV BODIES USING POLYMERIC COATINGS

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SADEGHI KEYVAN; GHOLAMZADEH N.A.

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Seminar Paper

Paper Information

Seminar: CONFERENCE ON FLUID DYNAMICS
Year:2004 | Issue:9

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Title

DRAG REDUCTION OF UUV BODIES USING POLYMERIC COATINGS

Author(s)

SADEGHI KEYVAN | GHOLAMZADEH N.A.

Keywords

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Abstract

IN THIS RESEARCH PROJECT, THE APPLICABILITY OF NON-COMPLIANT, HYDROPHOBIC (WATER-INSOLUBLE) POLYMERIC COATINGS WAS INVESTIGATED ON THE DRAG REDUCTION OF A PARTICULAR UUV (UN-MANNED UNDER-WATER VEHICLE). TO MEASURE THE DRAG FORCE FOR THE BODY OF INTEREST, A HOME-BUILT, TAILOR-MADE, DEVICE CALLED WATER COLUMN WAS DESIGNED AND MANUFACTURED. ALL MEASUREMENTS WERE PERFORMED AT ZERO ANGLE OF ATTACK. THE REYNOLDS NUMBER OF THE FLOW WAS ADJUSTED TO BE HIGH ENOUGH (AROUND 20,000) FOR THE DRAG COEFFICIENT TO BE REGARDED AS INDEPENDENT OF REYNOLDS NUMBER. THE FIRST SET OF EXPERIMENTS WAS CARRIED OUT ON THE BODY AS UNCOATED TO OBTAIN THE BASE VALUE FOR THE DRAG COEFFICIENT. IN THE NEXT STEP, THE BODY WAS COVERED WITH A THIN LAYER OF A SPECIFIC POLYMER CALLED KSBP (KISS-COTE CO. USA), AND IT WAS FOUND THAT THIS COATING IS ENABLED TO REDUCE DRAG BY AS MUCH AS 20%. THE WORK NOT ONLY DEMONSTRATES THE EFFICIENCY OF POLYMERIC COATINGS IN DRAG REDUCTION, IT ALSO PROVES THE APPLICABILITY OF WATER COLUMN AS A GOOD ALTERNATIVE FOR WATER TUNNELS.

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APA: Copy

SADEGHI, KEYVAN, & GHOLAMZADEH, N.A.. (2004). DRAG REDUCTION OF UUV BODIES USING POLYMERIC COATINGS. CONFERENCE OF FLUID DYNAMICS. SID. https://sid.ir/paper/902517/en

Vancouver: Copy

SADEGHI KEYVAN, GHOLAMZADEH N.A.. DRAG REDUCTION OF UUV BODIES USING POLYMERIC COATINGS. 2004. Available from: https://sid.ir/paper/902517/en

IEEE: Copy

KEYVAN SADEGHI, and N.A. GHOLAMZADEH, “DRAG REDUCTION OF UUV BODIES USING POLYMERIC COATINGS,” presented at the CONFERENCE OF FLUID DYNAMICS. 2004, [Online]. Available: https://sid.ir/paper/902517/en

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