TY - JOUR AU - Lendvai, Bálint AU - Benedek, Tamás TI - Experimental and numerical investigation of the blade tip-related aeroacoustic sound source mechanisms of a ducted low-speed axial flow fan JF - APPLIED ACOUSTICS J2 - APPL ACOUST VL - 215 PY - 2023 SN - 0003-682X DO - 10.1016/j.apacoust.2023.109705 UR - https://m2.mtmt.hu/api/publication/34299741 ID - 34299741 N1 - Export Date: 24 November 2023 CODEN: AACOB Correspondence Address: Lendvai, B.; Department of Fluid Mechanics, Bertalan Lajos Street 4-6, Hungary; email: lendvai.balint@gpk.bme.hu LA - English DB - MTMT ER - TY - JOUR AU - Lendvai, Bálint AU - Benedek, Tamás TI - Phased array microphone measurement of a ducted low-speed axial flow fan at various operating points with the involvement of the acoustically transparent duct technique JF - INTERNATIONAL JOURNAL OF AEROACOUSTICS J2 - INT J AEROACOUST VL - 22 PY - 2023 IS - 7-8 SP - 625 EP - 638 PG - 14 SN - 1475-472X DO - 10.1177/1475472X231206494 UR - https://m2.mtmt.hu/api/publication/34209127 ID - 34209127 N1 - Correspondence Address: Lendvai, B.; Department of Fluid Mechanics, Hungary; email: lendvai.balint@gpk.bme.hu AB - The aeroacoustic investigation of ducted turbomachines is not evident. Wall-mounted and strut-mounted microphones placed in the flow field are both sensitive to installation, placement, and flow-related effects. Therefore, it is advantageous to place the microphone sensors outside of the ducting of the turbomachine while also accounting for the acoustic characteristic of the ducting. In this paper, a ducted low-speed axial flow fan is investigated with the acoustically transparent duct (ATD) and the phased array microphone (PAM) Rotating Source Identification (ROSI) beamforming techniques at design and off-design conditions. The combination of these methods is capable of identifying the dominant sound sources of the fan in a non-intrusive approach at stall condition, pre-stall operation, design condition, and part-load operating condition as well. LA - English DB - MTMT ER - TY - CONF AU - Tóth, D. AU - Divinyi-Zsoldos, T. AU - Lendvai, Bálint AU - Vad, János TI - Preliminary case studies to acoustics-based condition monitoring of industrial fans T2 - 15th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics 2023, ETC 2023 PB - European Turbomachinery Society (EUROTURBO) T3 - European Conference on Turbomachinery Fluid dynamics & Thermodynamics, ISSN 2313-0067 PY - 2023 PG - 15 DO - 10.29008/ETC2023-123 UR - https://m2.mtmt.hu/api/publication/34069787 ID - 34069787 LA - English DB - MTMT ER - TY - CONF AU - Lendvai, Bálint AU - Benedek, Tamás TI - Application of a higher-order vortex identification method for quantifying the tip leakage vortex wandering in a low-speed axial fan case study T2 - 15th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics 2023, ETC 2023 PB - European Turbomachinery Society (EUROTURBO) T3 - European Conference on Turbomachinery Fluid dynamics & Thermodynamics, ISSN 2313-0067 PY - 2023 PG - 11 DO - 10.29008/ETC2023-231 UR - https://m2.mtmt.hu/api/publication/34069781 ID - 34069781 LA - English DB - MTMT ER - TY - JOUR AU - Lelkes, János AU - Horváth, Dávid András AU - Lendvai, Bálint AU - Farkas, Balázs AU - Bak, Bendegúz Dezső AU - Kalmár-Nagy, Tamás TI - Data-driven aerodynamic models for aeroelastic simulations JF - JOURNAL OF SOUND AND VIBRATION J2 - J SOUND VIB VL - 564 PY - 2023 PG - 16 SN - 0022-460X DO - 10.1016/j.jsv.2023.117847 UR - https://m2.mtmt.hu/api/publication/34046146 ID - 34046146 N1 - The research reported in this paper and carried out at BME has been supported by the ÚNKP-21-3 New National Excellence Program of the Ministry for Innovation and Technology from the source of the National Research, Development and Innovation Fund, Hungary. The research reported in this paper is part of project no. BME-NVA-02, implemented with the support provided by the Ministry of Innovation and Technology of Hungary from the National Research, Development and Innovation Fund, Hungary, financed under the TKP2021 funding scheme. This work has been supported by the Hungarian National Research, Development and Innovation Fund under contract NKFI K 137726. LA - English DB - MTMT ER - TY - JOUR AU - Lendvai, Bálint AU - Benedek, Tamás AU - Balla, Esztella Éva TI - Aeroacoustic investigation of airfoil profiles in turbulence at moderate Reynolds numbers involving the phased array microphone technique and the ANOVA statistical method JF - FLUCTUATION AND NOISE LETTERS J2 - FLUCT NOISE LETT VL - 22 PY - 2023 IS - 3 PG - 13 SN - 0219-4775 DO - 10.1142/S0219477523500323 UR - https://m2.mtmt.hu/api/publication/33687613 ID - 33687613 N1 - Funding Agency and Grant Number: Ministry of Innovation and Technology of Hungary from National Research, Development, and Innovation Fund [BME-NVA-02, TKP2021]; Hungarian National Research, Development, and Innovation Centre [K 129023]; National Talent Programme of the Ministry of Human Capacities, Hungary [NFTO-21-B-0279] Funding text: The research reported in this paper is part of project no. BME-NVA-02, implemented with the support provided by the Ministry of Innovation and Technology of Hungary from the National Research, Development, and Innovation Fund, financed under the TKP2021 funding scheme. The research has also been funded by the Hungarian National Research, Development, and Innovation Centre under contract No. K 129023, and the National Talent Programme of the Ministry of Human Capacities, Hungary (NFTO-21-B-0279). LA - English DB - MTMT ER - TY - CHAP AU - Lendvai, Bálint AU - Benedek, Tamás ED - Vad, János TI - Study on the effect of sudden duct diameter change on the performance of an axial flow fan T2 - Proceedings of Conference on Modelling Fluid Flow (CMFF'22) PB - Budapest University of Technology and Economics, Department of Fluid Mechanics CY - Budapest SN - 9789634218814 PY - 2022 SP - 504 EP - 511 PG - 8 UR - https://m2.mtmt.hu/api/publication/33128380 ID - 33128380 LA - English DB - MTMT ER - TY - JOUR AU - Benedek, Tamás AU - Vad, János AU - Lendvai, Bálint TI - Combined acoustic and aerodynamic investigation of the effect of inlet geometry on tip leakage flow noise of free-inlet free-exhaust low-speed axial flow fans JF - APPLIED ACOUSTICS J2 - APPL ACOUST VL - 187 PY - 2022 PG - 15 SN - 0003-682X DO - 10.1016/j.apacoust.2021.108488 UR - https://m2.mtmt.hu/api/publication/32497448 ID - 32497448 N1 - Export Date: 10 May 2022 CODEN: AACOB Correspondence Address: Benedek, T.; Department of Fluid Mechanics, Bertalan Lajos Street 4-6, Hungary; email: benedek@ara.bme.hu LA - English DB - MTMT ER - TY - CONF AU - Lendvai, Bálint AU - Lelkes, János ED - Barabás, István TI - Aeroelasztikus szárnymodell numerikus vizsgálata T2 - XXIX. Nemzetközi Gépészeti Konferencia OGÉT 2021 PB - Erdélyi Magyar Műszaki Tudományos Társaság (EMT) C1 - Kolozsvár T3 - Nemzetközi Gépészeti Találkozó (OGÉT), ISSN 2068-1267 ; 29. PY - 2021 SP - 48 EP - 51 PG - 4 UR - https://m2.mtmt.hu/api/publication/31990690 ID - 31990690 LA - Hungarian DB - MTMT ER - TY - CONF AU - Lelkes, János AU - Lendvai, Bálint ED - Barabás, István TI - Torziós csillapító alkalmazása belebegés megszüntetésére T2 - XXIX. Nemzetközi Gépészeti Konferencia OGÉT 2021 PB - Erdélyi Magyar Műszaki Tudományos Társaság (EMT) C1 - Kolozsvár T3 - Nemzetközi Gépészeti Találkozó (OGÉT), ISSN 2068-1267 ; 29. PY - 2021 SP - 44 EP - 47 PG - 4 UR - https://m2.mtmt.hu/api/publication/31990685 ID - 31990685 LA - Hungarian DB - MTMT ER -