Open Access
ARTICLE
Yanzhao Yang1, Xiaowen Song2, Zhiying Deng2,*, Jianyang Yu3
FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2026.074345
Abstract In this study, a Gaussian Process Regression (GPR) surrogate model coupled with a Bayesian optimization algorithm was employed for the single-objective design optimization of fan-shaped film cooling holes on a concave wall. Fan-shaped holes, commonly used in gas turbines and aerospace applications, flare toward the exit to form a protective cooling film over hot surfaces, enhancing thermal protection compared to cylindrical holes. An initial hole configuration was used to improve adiabatic cooling efficiency. Design variables included the hole injection angle, forward expansion angle, lateral expansion angle, and aperture ratio, while the objective function was the More >
Open Access
ARTICLE
Jing Li1, Bo Ning1,*, Bo Li2, Xuemei Jin1, Dezhi Qiu1, Fenlan Ou1
FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2026.074335
Abstract As a controllable power generation method requiring no energy storage, Ocean Thermal Energy Conversion (OTEC) technology demonstrates characteristics of abundant reserves, low pollution, and round-the-clock stable operation. The free-standing cold-water pipe (CWP) in the system withstands various complex loads during operation, posing potential failure risks. To reveal the deformation and stress mechanisms of OTEC CWPs, this study first analyzes wave particle velocity and acceleration to determine wave loads at different water depths. Based on the Euler-Bernoulli beam model, a quasi-static load calculation model for OTEC CWPs was established. The governing equations were discretized using the… More >
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