Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Peszynski Kazimierz"'
Publikováno v:
MATEC Web of Conferences, Vol 302, p 01021 (2019)
The paper presents a new ventilation system characterized by the cross-section of the channels in the shape of a rounded rectangle. The basic research problem was the determination of local losses in the system components. To achieve this goal, it is
Externí odkaz:
https://doaj.org/article/02b113feb99d4c9fb79a2820f1726fc0
Publikováno v:
EPJ Web of Conferences, Vol 213, p 02064 (2019)
The work presents a mathematical model of a fountain providing an hourglass-shaped water image based on four of its basic parameters: height H, coefficient of contraction χ, diameter of n nozzles arrangement Dna, and coefficient of contraction locat
Externí odkaz:
https://doaj.org/article/49ac535a30ad4ab2b440e8cc59b7ee44
Publikováno v:
EPJ Web of Conferences, Vol 180, p 02082 (2018)
Paper presents new mathematical model for air flow velocity distribution in rounded rectangular ducts and its experimental verification. In papers [1, 2] an mathematical model based on modified Prandtl equation for power power-law velocity profile wa
Externí odkaz:
https://doaj.org/article/9d10765bc7f94fecb6a5ce5b53575cd7
Autor:
Golebiowska Irena, Peszynski Kazimierz
Publikováno v:
EPJ Web of Conferences, Vol 180, p 02031 (2018)
The paper briefly presents selected basic kinds of excitation of cable vibration caused by dynamic effect of wind. It describes the aerodynamic phenomena such as vortex excitation, wind-rain excitation, galloping and buffeting. Cables are structures
Externí odkaz:
https://doaj.org/article/abc12084566642d68de391c709954b01
Publikováno v:
EPJ Web of Conferences, Vol 114, p 02149 (2016)
The paper presents an analysis of the test results of a new type of fluidic oscillator. The oscillator design is based on the internal feedback in the form of two vortex chambers. The results were transformed into a dimensionless form. Then, the effe
Externí odkaz:
https://doaj.org/article/6271b56fbbff4937a0349028de92dc36
Publikováno v:
EPJ Web of Conferences, Vol 114, p 02121 (2016)
Paper discusses a new configuration of fluidic oscillators, a subject of recent Patent application. There is some similarity with the standard Warren oscillator with its bistable jet-deflection diverter and two feedbacks – which is not suitable for
Externí odkaz:
https://doaj.org/article/e7a77bac97a74f16a83d228b36688c19
Autor:
Tesař Václav, Peszynski Kazimierz
Publikováno v:
EPJ Web of Conferences, Vol 92, p 02095 (2015)
Paper discusses aerodynamics and potential engineering applications of an unusual and in literature practically unknown fluid flow configuration, with two wall-jets attached to a cylindrical surface so that they collide head-on and by mutual conjunct
Externí odkaz:
https://doaj.org/article/6d71156f03c2402593213d1b454d2196
Publikováno v:
EPJ Web of Conferences, Vol 25, p 01092 (2012)
Synthetic jets are currently in the focus of attention as means for flow control in external aerodynamics. Less known and studied is their use in internal aerodynamics, where several existing papers discussed separation control in diffusers. The subj
Externí odkaz:
https://doaj.org/article/e1225a12ea214e36ae2448dbe9e4a26c
Autor:
Peszynski, Kazimierz, Tesař, Václav
Publikováno v:
In Flow Measurement and Instrumentation October 2020 75
Autor:
Tesař, Václav, Peszynski, Kazimierz
Publikováno v:
In Sensors & Actuators: A. Physical 1 June 2015 228:82-94