Jacek Sobczyk
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Experimental Stand for Very-Low-Velocity Gas Flow Generation Open
This article presents an experimental stand for the generation of gas flows with very low velocities. The constant volume air flow was generated in the measurement area with the use of a Mariotte bottle and a water piston (water column in …
Semi-Empirical Approach to Gas Flow Velocity Measurement by Means of the Thermal Time-of-Flight Method—Further Investigation Open
This paper describes a study to expand the knowledge as to whether a thermal wave anemometer can be used to measure the velocity of flowing gases or gas mixtures in situ. For this purpose, several series of measurements were performed in l…
PIV Measurements of Turbulent Airflow in a Channel with Trapezoidal Ribs on One Wall Open
This paper presents the results of PIV measurements of turbulent airflow in a channel with a single ribbed wall. The rough elements had the form of evenly spaced trapezoids. The ratio of the height of a single rib to the height of the meas…
A Semi-Empirical Approach to Gas Flow Velocity Measurement by Means of the Thermal Time-of-Flight Method Open
This paper presents a method of measuring gas flow velocity based on the thermal time-of-flight method. The essence of the solution is an analysis of the time shift and the shape of voltage signals at the transmitter and at a temperature w…
Stability of Flow around Two Rectangular Cylinders in Tandem Open
The experimental study with the use of particle image velocimetry (PIV) has been conducted to investigate the stability of flow around two identical square cylinders in tandem arrangement at a different Reynolds numbers.The important study…
Computational domain discretization for CFD analysis of flow in a granular packed bed Open
1. Asendrych D., Niegodajew P., 2017, Numerical study of the CO2 absorber performance subjected to the varying amine solvent and flue gas loads, Chemical Engineering Communications, 204, 5, 580-590. CrossRef Google Scholar
Numerical modelling of flow field within a packed bed of granular material Open
Computational domain discretization is the pre-processing stage in CFD analysis and it highly contributes to reducing the level of solution error as well as increasing the numerical stability of a model. The discretization of domain repres…
Experimental study of the aerodynamic perturbations induced by the single normal hot-wire probe positioned normally in the vicinity of a wall Open
The conducted research, though still at the preliminary stage, is a step toward a better understanding of the flow phenomena accompanying hot-wire probes. For the flow in the vicinity of a wall, a potentially non-optimal case was analyzed …
EXPERIMENTAL STUDY OF THERMAL EFFECTS IN COOLING OF CIRCULAR CYLINDER IN LOCK-ON CONDITIONS Open
The paper presents a simple method for determining the phenomenon of unsteady thermal effects in cooling of circular cylinder. The research has been undertaken in order to explain the thermoaerodynamic processes, which are characterized by…
PIV measurements of airflow past multiple cylinders Open
Flow characteristics in vicinity of six circular cylinders aligned inline was investigated experimentally by means of PIV method. Experiments were conducted in a low speed closed circuit wind tunnel. Inflow velocity was 1.2 m/s which corre…
PIV measurements of airflow past multiple cylinders Open
Flow characteristics in vicinity of six circular cylinders aligned inline was investigated experimentally by means of PIV method. Experiments were conducted in a low speed closed circuit wind tunnel. Inflow velocity was 1.2 m/s which corre…
Experimental study of the flow field disturbance in the vicinity of single sensor hot-wire anemometer Open
Preliminary experimental study of the flow field disturbance in the vicinity of single sensor normal hot-wire anemometer (SN) probe was carried out. Regular 2D particle image velocimetry (PIV) setup equipped with micro lens and distance ri…
Experimental study of the flow field disturbance in the vicinity of single sensor hot-wire anemometer Open
Preliminary experimental study of the flow field disturbance in the vicinity of single sensor normal hot-wire anemometer (SN) probe was carried out. Regular 2D particle image velocimetry (PIV) setup equipped with micro lens and distance ri…
Application of the lattice Boltzmann method for simulation of the mold filling process in the casting industry Open
The aim of this work is the development of the lattice Boltzmann model for simulation of the mold filling process. The authors present a simplified approach to the modeling of liquid metal-gas flows with particular emphasis on the interact…