This paper presents some of the results from a Master’s thesis research into the performance and operation of a centrifugal compressor at off-design operating conditions using advanced computational fluid dynamics (CFD) techniques. ANSYS CFX is the CFD solver used in this blind study to evaluate the ability of modern CFD software to predict the performance of centrifugal compressors operating a...

The use of hard and brittle material has become increasingly more extensive in recent years. Therefore processing of these materials for the parts fabrication has become a challenging problem. However, it is time-consuming to machine the hard brittle materials with the traditional metal-cutting technique that uses abrasive wheels. In addition, the tool would suffer excessive wear as well. Howev...

The current work presents the development of a numerical methodology to investigate sliding vane rotary machines by means of advanced design tools such as the Computational Fluid Dynamics ones. Although highly limited in this topic, literature shows that the major constraint for the employment of such approaches is the deformation and motion of the rotor mesh, i.e. the computational grid relate...

Bu çalışmada, Banki hidrolik türbininin verimini artırmak için türbin kanat sayısını optimize edip yeni çark modeli oluşturmak amaçlanmıştır. Debi ve düşü değerleri bilinen türbinin tasarım analitik yollarla hesaplanmıştır. Kanat sayısı literatürde kabul gören bir yol bulunmamaktadır. 7 farklı denenerek bu çarkın sayısal analizi ANSYS CFX yazılımıyla gerçekleştirilmiş analiz sonucu değerlerinde...

The study aims to investigate wind effects on the equal area and same height building model having plan cross-sectional shape in form of regular irregular bulidings. ratio modification is kept for shaped models because limited studies are available such type comparison. responses structure resist load increased by applying these modifications corner configuration as cut, chamfer, fillet structu...

Abstract Cavitation is a phenomenon that occurs easily during rotation of fluid machinery and can decrease the performance pump, thereby resulting in damage to flow passage components. To study influence wall roughness on cavitation centrifugal three-dimensional model internal field pump was constructed numerical simulation conducted with ANSYS CFX software based Reynolds normalization group k ...

Sediment erosion is a negative phenomenon for the water turbine. The purpose of this paper to study effect guide vane opening on particle motion and sediment in band chamber using Euler–Lagrangian approach. software Ansys CFX Tabakoff model are used simulate laden flow full passage hydraulic results good agreement with actual character site. Results show that has positive correlation non-cleara...

Tidal energy is one of the major sources renewable energy. To accelerate development tidal energy, improved designs Current Turbine (TCT) are necessary. The effect tower on performance and wake TCT investigated using Computational Fluid Dynamics (CFD) simulations. Transient analysis with transient rotor stator frame change model shear stress transport turbulence utilized in ANSYS CFX. An experi...

To explore the pressure fluctuation characteristics in a mixed-flow pump handling a gas-liquid two-phase flow, an unsteady simulation was carried out with ANSYS CFX for the whole flow passage when the inlet gas void fraction (IGVF) was 0%, 5%, and 10%, respectively. Under pure water conditions (IGVF = 0%), the reliability of the simulation was verified by comparing with the experiment in both a...

The influence of different geometries of the nozzles of an impingement cooling array of six jets directed to the flat surface on the flow mechanism and the heat transfer were investigated numerically. Basically the setup consisted of a cylindrical plenum with an inline array of impingement jets. Simulation were performed using Computational Fluid Dynamics (CFD) code Ansys CFX. The k – ω shear s...