TY  - JOUR
T1  - Numerical Investigation of Hydrofoil Cavitation Using OpenFOAM: Effect of Thickness and Camber
TT  - Numerical Investigation of Hydrofoil Cavitation Using OpenFOAM: Effect of Thickness and Camber
AU  - Kaya, Mehmet Numan
PY  - 2025
DA  - September
Y2  - 2025
DO  - 10.34248/bsengineering.1759120
JF  - Black Sea Journal of Engineering and Science
JO  - BSJ Eng. Sci.
PB  - Karyay Karadeniz Yayımcılık Ve Organizasyon Ticaret Limited Şirketi
WT  - DergiPark
SN  - 2619-8991
SP  - 1585
EP  - 1594
VL  - 8
IS  - 5
LA  - en
AB  - Cavitation is a critical phenomenon in hydrodynamic applications, significantly influencing the performance and durability of hydrofoils. This study presents a numerical investigation of cavitation over hydrofoils, focusing on the effects of thickness and camber, using the interPhaseChangeFoam solver within the OpenFOAM framework. The numerical setup was validated against experimental data for the NACA66(mod) hydrofoil. Simulations were performed at a fixed angle of attack of 4° under two cavitation numbers, σ = 0.84 and σ = 0.91 using the Schnerr–Sauer cavitation model with a vapor pressure of 2420 Pa. To assess thickness effects, symmetric hydrofoils NACA0012, NACA0016, and NACA0020 were analyzed, while camber effects were examined using hydrofoils of identical thickness but varying camber, NACA0012, NACA2412, and NACA4412. Results show that cambered and thicker hydrofoils develop more extensive cavitation regions. Increasing the cavitation number generally leads to higher lift coefficients, with the effect more pronounced for cambered profiles. Greater camber promotes earlier cavitation inception, a larger cavity extent, and higher lift, with NACA4412 achieving the highest lift coefficients of approximately CL = 0.74 and 0.79 at σ = 0.84 and 0.91, respectively. Increased thickness also enlarges the cavitation region but generally results in lower lift, as observed for NACA0020, which exhibited lift coefficients of approximately CL = 0.31 and 0.34 at σ = 0.84 and 0.91, respectively. Increasing the cavitation number from σ = 0.84 to 0.91 reduced drag for all profiles by up to about 23% while preserving lift in cambered foils.
KW  - Cavitation
KW  - Hydrofoil
KW  - Thickness
KW  - Camber
KW  - CFD
KW  - OpenFOAM
N2  - Cavitation is a critical phenomenon in hydrodynamic applications, significantly influencing the performance and durability of hydrofoils. This study presents a numerical investigation of cavitation over hydrofoils, focusing on the effects of thickness and camber, using the interPhaseChangeFoam solver within the OpenFOAM framework. The numerical setup was validated against experimental data for the NACA66(mod) hydrofoil. Simulations were performed at a fixed angle of attack of 4° under two cavitation numbers, σ = 0.84 and σ = 0.91 using the Schnerr–Sauer cavitation model with a vapor pressure of 2420 Pa. To assess thickness effects, symmetric hydrofoils NACA0012, NACA0016, and NACA0020 were analyzed, while camber effects were examined using hydrofoils of identical thickness but varying camber, NACA0012, NACA2412, and NACA4412. Results show that cambered and thicker hydrofoils develop more extensive cavitation regions. Increasing the cavitation number generally leads to higher lift coefficients, with the effect more pronounced for cambered profiles. Greater camber promotes earlier cavitation inception, a larger cavity extent, and higher lift, with NACA4412 achieving the highest lift coefficients of approximately CL = 0.74 and 0.79 at σ = 0.84 and 0.91, respectively. Increased thickness also enlarges the cavitation region but generally results in lower lift, as observed for NACA0020, which exhibited lift coefficients of approximately CL = 0.31 and 0.34 at σ = 0.84 and 0.91, respectively. Increasing the cavitation number from σ = 0.84 to 0.91 reduced drag for all profiles by up to about 23% while preserving lift in cambered foils.
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UR  - https://doi.org/10.34248/bsengineering.1759120
L1  - https://dergipark.org.tr/en/download/article-file/5126830
ER  -