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ANSYS inc user-defined functions (udfs)
User Defined Functions (Udfs), supplied by ANSYS inc, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/user-defined+function+(udf)/user+defined+function/10__1016_slash_j__tsep__2025__103503-63-5-9
Average 90 stars, based on 1 article reviews
user-defined functions (udfs) - by Bioz Stars, 2026-10
90/100 stars

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Article Title: Systems and methods for forming micropillar array
Article Snippet: A user defined function (UDF) was written based on the mathematical model previously discussed and was implemented in ANSYS Fluent R17.1 to perform the simulations.

Article Title: Numerical investigation on the suppression of vortex-induced vibration system by assembling different rotors based on quasi-active control method
Article Snippet: Combining the innovative concept of quasi-active control method, a numerical simulation is conducted to investigate the vortex-induced vibration (VIV) responses.. The objects of this study include a main cylinder (MC) and a cylindrical system outfitted with a pair of rotors of different types (with Banki rotors, Darrieus rotors, and Savonius rotors, denoted as WBR, WDR, and WSR), and the VIV responses are analyzed within the Reynolds number range of 0.8 × 103≤Re ≤ 5.6 × 103.. The findings indicate that all three kinds of rotors show excellent vibration suppression effect in downstream and cross-flow directions by adjusting the VIV response (amplitude, frequency, hydrodynamic coefficient) and vortex pattern (vortex mode, wake shape).

Article Title: Friction factor and heat transfer prediction of rocket engine cooling channels in numerical simulations with high roughness Reynolds number
Article Snippet: A =(−2.346 ⋅ 10−4)P r2 + (2.102 ⋅ 10−3)P r + 3.542 ⋅ 10−3 B =(−2.303 ⋅ 10−3)P r2 + (5.588 ⋅ 10−2)P r − 3.043 ⋅ 10−3 (16) This procedure is then implemented in Ansys Fluent through UDF (User-Defined Function), and the simulation for the case of ks∕D = 0.21 is repeated with the same boundary conditions.

Article Title: Hull shape optimization of autonomous underwater vehicles using a full turbulent continuous adjoint solver
Article Snippet: The present study aims at simultaneously optimizing the nose and tail of two distinct Autonomous Underwater Vehicles (AUVs) using a full turbulent continuous adjoint solver.. The entire procedure is carried out utilizing two open-source software: Salome (CAD and mesh generator) and OpenFOAM v2206 (CFD solver and optimizer).. Reynolds-Averaged Navier–Stokes (RANS) equations closed by the k-ω SST model are employed to simulate the turbulent flow around AUV hulls.

Article Title: Experimental and numerical investigation of pressure distribution in human upper airway passage before and after maxillary sinus surgery.
Article Snippet: Sinusitis, a common disease of the maxillary sinus, is initially managed with saline solution and medication, resulting in the resolution of symptoms within a few days in most cases.. However, Functional Endoscopic Sinus Surgeries are recommended if pharmacological treatments prove ineffective.. This research aims to investigate the effects of maxillary sinus surgery on the airflow field, pressure distribution within the nasal cavity, and overall ventilation.

Article Title: Oral configuration-dependent variability of the metrics of exhaled respiratory droplets during a consecutive coughing event.
Article Snippet: The coughing flow profiles were implemented using a user-defined function (UDF) macro in the ANSYS Fluent software.

Article Title: Thermal-hydraulic characterization of a 50-kW medicinal-aimed aqueous homogeneous reactor (MAHR)
Article Snippet: This paper analyses the thermal–hydraulic performance of a proposed 50-kW aqueous homogeneous reactor (AHR) aimed at producing Mo-99.. The reactor thermal–hydraulic characteristics are analyzed using ANSYSFLUENT software and Relap code, and the results are validated through experiments conducted by a prototypic cylindrical sector of the reactor vessel.. Boundary conditions in the CFD simulation are set up based on Relap modelling, while CFD outputs are validated by experimental results achieved using the laboratory model. Then, various parameters, including coolant mass flow rate, first cycle pipe diameter, coolant outlet temperature, average fuel solution temperature, and the elevation difference between the reactor and heat exchanger, are optimized using the least-squares optimization method.

Software:

Article Title: Study on the Influence of Wind Load on the Safety of Magnetic Adsorption Wall-Climbing Inspection Robot for Gantry Crane
Article Snippet: .. Fluent’s UDF (User-Defined Function) in Ansys Fluent software is a tool that allows users to write custom code in C to extend simulation capabilities. ..



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