TY  - CHAP
AU  - Daku, Gábor
AU  - Vad, János
TI  - Experiment-Based Preliminary Design Guidelines for Consideration of Profile Vortex Shedding From Low-Speed Axial Fan Blades
T2  - Proceedings of the ASME Turbo Expo 2020
PB  - American Society of Mechanical Engineers (ASME)
CY  - New York, New York
SN  - 9780791884058
PY  - 2020
SP  - 1
PG  - 12
DO  - 10.1115/GT2020-14214
UR  - https://m2.mtmt.hu/api/publication/31827513
ID  - 31827513
LA  - English
DB  - MTMT
ER  - 

TY  - CONF
AU  - Daku, Gábor
AU  - Vad, János
ED  - Barabás, István
TI  - Mérés-alapú előtervezési irányelvek axiális ventilátor-lapátokról leúszó örvények figyelembe vételére
T2  - XXVIII. Nemzetközi Gépészeti Konferencia – OGÉT 2020
PB  - Erdélyi Magyar Műszaki Tudományos Társaság (EMT)
C1  - Kolozsvár
T3  - Nemzetközi Gépészeti Találkozó (OGÉT), ISSN 2068-1267
PY  - 2020
SP  - 97
EP  - 100
PG  - 4
UR  - https://m2.mtmt.hu/api/publication/31800734
ID  - 31800734
LA  - Hungarian
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Tóth, Bence Mihály
AU  - Vad, János
TI  - Algorithmic localisation of noise sources in the tip region of a low-speed axial flow fan
JF  - JOURNAL OF SOUND AND VIBRATION
J2  - J SOUND VIB
VL  - 393
PY  - 2017
SP  - 425
EP  - 441
PG  - 17
SN  - 0022-460X
DO  - 10.1016/j.jsv.2017.01.011
UR  - https://m2.mtmt.hu/api/publication/3182339
ID  - 3182339
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Benedek, Tamás
AU  - Vad, János
TI  - An industrial on-site methodology for combined acoustic-aerodynamic diagnostics of axial fans, involving the Phased Array Microphone technique
JF  - INTERNATIONAL JOURNAL OF AEROACOUSTICS
J2  - INT J AEROACOUST
VL  - 15
PY  - 2016
IS  - 1-2
SP  - 81
EP  - 102
PG  - 22
SN  - 1475-472X
DO  - 10.1177/1475472X16630849
UR  - https://m2.mtmt.hu/api/publication/2922231
ID  - 2922231
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Tóth, Bence Mihály
AU  - Vad, János
TI  - Fourier Analysis of Beamforming Data at the Tip of an Axial Fan Rotor
JF  - PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING
J2  - PERIOD POLYTECH MECH ENG
VL  - 60
PY  - 2016
IS  - 3
SP  - 152
EP  - 158
PG  - 7
SN  - 0324-6051
DO  - 10.3311/PPme.8935
UR  - https://m2.mtmt.hu/api/publication/3045464
ID  - 3045464
LA  - English
DB  - MTMT
ER  - 

TY  - CONF
AU  - Benedek, Tamás
AU  - Vad, János
ED  - Vazquez, R
ED  - Garcia, RC
ED  - Martelli, F
ED  - Sieverding, C
TI  - Spatially Resolved Acoustic And Aerodynamic Studies Upstream And Downstream Of An Industrial Axial Fan With Involvement Of The Phased Array Microphone Technique
T2  - 11th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC 2015
T3  - European Conference on Turbomachinery Fluid dynamics & Thermodynamics, ISSN 2313-0067
PY  - 2015
PG  - 12
UR  - https://m2.mtmt.hu/api/publication/2922194
ID  - 2922194
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Horváth, Csaba
TI  - Beamforming Investigation of Dominant Counter-Rotating Open Rotor Tonal and Broadband Noise Sources
JF  - AIAA JOURNAL
J2  - AIAA J
VL  - 53
PY  - 2015
IS  - 6
SP  - 1602
EP  - 1611
PG  - 10
SN  - 0001-1452
DO  - 10.2514/1.J053465
UR  - https://m2.mtmt.hu/api/publication/2818814
ID  - 2818814
LA  - English
DB  - MTMT
ER  - 

TY  - CHAP
AU  - Benedek, Tamás
AU  - Vad, János
TI  - Concerted aerodynamic and acoustic diagnostics of an axial flow industrial fan, involving the phased array microphone technique
T2  - ASME Turbo Expo 2014
PB  - American Society of Mechanical Engineers (ASME)
CY  - New York, New York
SN  - 9780791845578
PY  - 2014
PG  - 10
DO  - 10.1115/GT2014-25916
UR  - https://m2.mtmt.hu/api/publication/2697869
ID  - 2697869
AB  - The paper presents a methodology for on-site investigation of short-ducted industrial axial flow fans, as an easily realizable and effective means for concerted diagnostics on fan aerodynamics and acoustics along the rotor radius. The methodology relies on the accessibility of the fan from the upstream direction only. It involves experiments such as i) measurement of inlet axial velocity profile along the radius, combined with ii) beamforming studies using the Phased Array Microphone technique. The application of the methodology has been demonstrated in a case study of a ventilating fan. The semi-empirical data processing demonstrated significant changes of aerodynamic properties along the blade span. The acoustic studies regarded a frequency range being significant from the viewpoint of human audition. The phased array data have been processed and evaluated on the basis of two in-house developed beamforming codes, based on the Delay and Sum as well as the Rotating Source Identifier (ROSI) methods. The measurements revealed that the detected noise is dominated by rotating sources of broadband noise. By means of the ROSI code, pitchwise-resolved information has been obtained on the rotor noise. By such means, noise sources such as locally thickened suction side blade boundary layers and tip leakage flow have been identified. The spanwise variation of sound pressure has been compared with cascade loss indicators used in fan analysis and preliminary design, such as the total pressure loss coefficient and the Lieblein diffusion factor. The sound pressure has been found to increase locally with the total pressure loss and diffusion along the dominant portion of blade span, in the frequency bands being the most significant from the viewpoint of audibility of the noise generated by the fan.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Vad, János
AU  - Horváth, Csaba
AU  - Kovács, József Gábor
TI  - Aerodynamic and aero-acoustic improvement of electric motor cooling equipment
JF  - PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
J2  - P I MECH ENG A-J POW
VL  - 228
PY  - 2014
IS  - 3
SP  - 300
EP  - 316
PG  - 17
SN  - 0957-6509
DO  - 10.1177/0957650913517678
UR  - https://m2.mtmt.hu/api/publication/2591747
ID  - 2591747
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Vad, János
AU  - Kwedikha, A R A
AU  - Jaberg, H
TI  - Effects of blade sweep on the performance characteristics of axial flow turbomachinery rotors
JF  - PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
J2  - P I MECH ENG A-J POW
VL  - 220
PY  - 2006
IS  - A7
SP  - 737
EP  - 749
PG  - 13
SN  - 0957-6509
DO  - 10.1243/09576509JPE249
UR  - https://m2.mtmt.hu/api/publication/1632989
ID  - 1632989
N1  - Department of Fluid Mechanics, Budapest University of Technology and Economics, Bertalan Lajos u. 4 - 6, Budapest H-1111, Hungary            
            Institute for Hydraulic Fluid Machinery, Graz University of Technology, Graz, Austria            
            Cited By :38            
            Export Date: 19 September 2023            
            CODEN: PPENE            
            Correspondence Address: Vad, J.; Department of Fluid Mechanics, Bertalan Lajos u. 4 - 6, Budapest H-1111, Hungary; email: vad@ara.bme.hu
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Vad, János
AU  - Koscsó, G
AU  - Gutermuth, M
AU  - Kasza, Zs
AU  - Tábi, Tamás
AU  - Csörgő, Tibor
TI  - Study of the aero-acoustic and aerodynamic effects of soft coating upon airfoil
JF  - JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING
J2  - JSME INT J C-MECH SY
VL  - 49
PY  - 2006
IS  - 3
SP  - 648
EP  - 656
PG  - 9
SN  - 1344-7653
DO  - 10.1299/jsmec.49.648
UR  - https://m2.mtmt.hu/api/publication/1632990
ID  - 1632990
LA  - English
DB  - MTMT
ER  -