... pipe surface load constitutive model numerical simulation mechanical behavior High-density polyethylene (HDPE) gas pipe used in the construction of underground gas networks makes the transport and assembly much easier, due to its special advantages compared to steel pipes, such as low...

... this process. To evaluate the mixing effect of the blended gas, we conducted numerical simulations to analyze the velocity and concentration distribution along the continuous section of the hydrogen blending pipeline. The results indicated that achieving a hydrogen branch length of 1/2 the diameter...

... it gradually increases in the horizontal direction. 1 Corresponding author. e-mail:  liuwu65@swpu.edu.cn 13 08 2023 14 11 2023 20 12 2023 hydrogen-blended natural gas long-distance pipeline leakage and diffusion numerical simulation The central and western regions...

... zone (HAZ) are calibrated through the small punch test (SPT) and single edge notch bending (SENB) test. On this basis, the welded pipe model with inner wall defects is established, and a numerical simulation method for dynamic fracture behavior based on damage mechanics is formed. The numerical...

... 2022 T-shaped tube hydroforming numerical simulation hydraulic bursting fracture analysis National Natural Science Foundation of China 10.13039/501100001809 51975267 High-performance and lightweight components were always attractive attention of the aerospace and other...

... to reclosure. The current method often leaves a narrow gap to estimate the full closing status, which will introduce a deviation. To address this issue, a full closing numerical simulation method (FCNSM) is developed to solve the problem of simulation between discontinuous flow field (DFF) and continuous flow...

... burst testing fracture analysis numerical simulation Nowadays, the glass fiber tape reinforced polyethylene (GFTRP) pipe plays an important role in the fields of oil, gas transportation, marine industry, farmland irrigation, and other fields due to its corrosion resistance and good flexibility...

... points with numerical simulation. The valve can be seen as a simple throttling system. By solving the Bernoulli equation, the volume flow rate Q can be written as [ 26 ] (8) Q = C d π d 4 2 − d 5 2 x 2 ( P i − P o ) / ρ...

... offshore pipeline damage mechanism lump-shaped object impact numerical simulation energy absorption As one of the most effective modes to transport marine oil and gas, an enormous number of offshore pipelines have been and are being built to make up for the supply shortage of onshore oil...

...-mail:  Longmenshao@163.com 21 11 2019 21 06 2020 07 10 2020 buried pipeline explosion load numerical simulation stress plastic deformation Pipeline is the main way for the oil and gas transportation. However, pipeline has been constantly threatened by the third-party damage...

...Boran Zhang; Wuyi Wan; Li Bi In numerical simulations of hydroturbine systems, the fluid in the draft tube keeps alternating between the free surface flow condition and the pressured flow condition. This combination of free surface flow model and pressured flow model has been a focus of researchers...

...R. Karimi; M. Shariati This paper investigates ratcheting behavior of SS316 L thin-walled steel pipes subjected to cyclic internal pressure experimentally and numerically. Numerical simulations were performed using abaqus software, and nonlinear isotropic/kinematic hardening model. According...

... by the pipeline. Therefore, it is necessary to study the mechanical response of buried PE pipes under different strain rates subjected to ground subsidence. PE pipeline ground subsidence numerical simulation orthogonal design gray correlation degree As a clean and environmentally friendly primary...

... for engineering applications. Some preliminary conclusions are drawn from the results of the field measurements and the numerical simulation. Pressure fluctuations spread through the pipeline over an appreciable distance. The sensitive frequencies of the pipeline vibration are determined, and the fundamental...

... model: It is a two-equation turbulence model commonly used in the fluid numerical simulation. Since the standard κ − ε model was proposed by Launder and Spalding, the standard κ − ε model has been rapidly developing in the field of turbulence with high precision and simple...

... No. ANSI/ASME B31.8. buried pipe subsidence area numerical simulation mechanical behavior ovality Buried pipes are the main method for oil and gas transportation. Long-distance oil and gas pipes crossing complex strata are prone to failure under various geological disasters [ 1 ]. Strata...

... curved surface was simulated by abaqus . Theoretical results were consistent with numerical simulation results and published experimental results (H. Y. Miao, S. Larose, et al., 2010, “An analytical approach to relate shot peening parameters to Almen intensity,” Surf. Coat. Technol., 205, pp. 2055–2066...

... residual stresses numerical simulation As oil and gas pipelines develop toward large throughput, high pressure, and long distance, and for safety sake, requirement for welding quality is becoming higher and higher [ 1 – 3 ]. Multiwire submerged arc welding (SAW) has been widely applied...

... relevance, which shows its usefulness for practical applications. shape optimization inverse problems glass blowing level set methods numerical simulation Glass blowing is a manufacturing process for the production of hollow, glass containers, such as bottles and jars. In a glass blow...

... of the sensing device are described in detail. Then, experiments are carried out to prove the accuracy and the long-term stability of the sensing device. To verify the accuracy of the device, numerical simulation of the deformation of a pipe model is carried out using finite element method. Results from...