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1-20 of 228
Keywords: reynolds number
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Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-580
... ABSTRACT The effects of Reynolds number on open-water and self-propulsion performance of a propeller with short chord length are investigated by numerical and experimental methods in the present work. Numerical studies are carried out using the RANS solver together with the γ - Re θ model...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-290
... has been investigated experimentally through suspension of rectangular, freshwater ice specimens in a recirculation flume to study the effect of Reynolds number (2.30 × 10 4 , 3.00 × 10 4 and 3.30 × 10 4 ) on scallop formation. Three phases of scallop formation were observed: an initial flat ice...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-317
...; Sarpkaya, 1986, 2001, 2005), which lacks of theoretical and experimental research. china government equation platform circular column asia government isw drag coefficient reynolds number upstream oil & gas pontoon part oblique isw solitary wave kc number theoretical model wave...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-324
... decreased gradually with the increase of Reynolds number. The net drag coefficients calculated with the mentioned empirical formula showed overestimated predictions for almost considered nets. Based on above researches, a new calculation formula was proposed, which could provide a better estimate...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-357
... ABSTRACT To evaluate the availability of traditional turbulence stimulator in the towing tank test by using model ship at very low speed condition, we carried out a direct numerical simulation for boundary layer flow with a trapezoidal stud. The two Reynolds numbers were tested by changing...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-484
... Propulsion Systems in power classes beginning at 125 [kW] up to 6500 [kW] input power. sustainability freight & logistics services marine transportation united states government upstream oil & gas social responsibility production control heat transfer coefficient reynolds number axial...
Proceedings Papers
Deqiang Tian, Zhong Li, Dangsheng Zhang, Liangbin Xu, Honghai Fan, Leixiang Sheng, Chaowei Li, Yushuang Zhang
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-214
... results of Nishioka (1974). wake velocity deficit velocity wake velocity distribution approximation method wake model cylinder velocity distribution riser numerical data upstream oil & gas reynolds number huse model blevin model goldstein schlichting diameter circular cylinder...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-283
.... The Reynolds numbers is Re d = 4.1×10 3 , volume fraction ranges from 0.13 to 0.5. The results show that the drag force distribution within the array of cylinders is influenced significantly by volume fraction. The drag coefficient increases with volume fraction, and unexpectedly the drag coefficients of some...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-291
... transportation wake fraction nominal wake field scale effect wake field fraction friction wake field shipbuilding reynolds number axial wake fraction upstream oil & gas propeller disk potential wake average axial wake fraction potential wake field circumferential distribution friction wake...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-390
... (UDF), then dynamic mesh technique was adopted to update the flow field. The range of Reynolds number covered is 5000<Re<15000, and the mass ratio (m*) are fixed as 0.96 which is the same as the TLP model test..The results showed that the numerical simulation and experimental results of VIM were...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-079
... triangular cylinder reynolds number power density circular cylinder resistance harvesting vibration spring sheet energy harvester Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022 by the International...
Proceedings Papers
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-068
... to the simulation of net cage. Milne (1972) estimated the drag coefficients for knotted and knotless nets based on empirical formulas using solid ratio from 0.2 to 0.8 and operate a full-scale physical experiment within the Reynolds numbers of 389~5×10 3 . The drag coefficient of non-biofouling nets is from 1.260...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3221
... the capability of the SST k- and DES turbulence models. a cylinder. The knowledge and experience documented in the literature Simulations with the DES turbulence model correlated more closely to show that the simulation of flows at high Reynolds numbers over long experimental measurements than simulations...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3219
... upstream oil & gas simulation free surface production monitoring circular cylinder transverse motion amplitude numerical investigation reservoir surveillance trajectory in-line motion amplitude aspect ratio vortex-induced motion equation reynolds number production control...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3217
... is the frequency of vortex-shedding; U is the subcritical Reynolds number range. The examined gap-to-diameter ratios (e/D) are in the range of 0.10 ~ 2.0. The velocity fluctuations of the lee- far-field flow velocity; D is the outer diameter of the cylinder. St is wake and the flow visualization were measured...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3224
... and Dalton (1996) studied the vortex shedding from a transversely oscillating circular cylinder in a uniform flow by numerical simulations. The effect of increasing the amplitude of an oscillating cylinder and the Reynolds number value were shown to lower the value of ƒ–ƒ s at which vortex switching...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1323
... to the Reynolds number dependency of the cylindrical components. CFD results at full-scale show that the SNAME recommendation method is on the conservative side. Based on the results of the CFD calculations at model-scale and full-scale, this paper discusses the scale effects of wind drag force acting on a truss...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3220
... perpendicular to the incoming flow. The Reynolds number 3 × 10 3 ≤ Re ≤ 1.5 × 10 4 falls in the flow regimes TrSL2 and reduced-velocity range is 3 ≤ U* ≤ 15. It is found that the FSI solver can well capture the vortex-induced vibration (VIV) response of cylinder in this range of Reynolds number. The upper...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-053
... in various directions, it is also crucial to identify the effect of the incident flow angle on the VIV. Therefore, this study, based on the numerical simulation, focuses on how the sectional force coefficients are coupled with wake structures according to the incident flow angle and the Reynolds number...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-493
... with the pod body and the strut. Based on the analysis of the pod body drag and the strut drag at different scales, a correction method is proposed for the frictional drag coefficients of the pod body and the strut by recalculating the Reynolds number with the modified characteristic length and characteristic...
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