Search Results - "Viitanen, Ville"

DDES of Wetted and Cavitating Marine Propeller for CHA Underwater Noise Assessment by Viitanen, Ville, Hynninen, Antti, Sipilä, Tuomas, Siikonen, Timo

“…In this paper we present results of delayed detached eddy simulation (DDES) and computational hydroacoustics (CHA) simulations of a marine propeller operating…”
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Compressible Two-Phase Viscous Flow Investigations of Cavitation Dynamics for the ITTC Standard Cavitator by Viitanen, Ville M., Sipilä, Tuomas, Sánchez-Caja, Antonio, Siikonen, Timo

“…In this paper, the ITTC Standard Cavitator is numerically investigated in a cavitation tunnel. Simulations at different cavitation numbers are compared against…”
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Cavitation on Model- and Full-Scale Marine Propellers: Steady And Transient Viscous Flow Simulations At Different Reynolds Numbers by Viitanen, Ville, Siikonen, Timo, Sánchez-Caja, Antonio

“…In this paper, we conducted numerical simulations to investigate single and two-phase flows around marine propellers in open-water conditions at different…”
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Multiphase Flow Simulation of ITTC Standard Cavitator for Underwater Radiated Noise Prediction by Hynninen, Antti, Viitanen, Ville, Tanttari, Jukka, Klose, Rhena, Testa, Claudio, Martio, Jussi

“…This work focuses on the main issues related to noise measurements in cavitation tunnels. The scope of the paper is to twofold: to obtain a better…”
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Simulation of turbulent effective wakes for propellers in off-design conditions by a correction factor approach by Sánchez-Caja, Antonio, Martio, Jussi, Viitanen, Ville M., Siikonen, Timo

“…This paper presents a procedure for the estimation of propeller effective wakes in oblique flows. It shows how a recently developed method for controlling…”
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Chiral-selective growth of single-walled carbon nanotubes on stainless steel wires by He, Maoshuai, Fedotov, Pavel V., Obraztsova, Elena D., Viitanen, Ville, Sainio, Jani, Jiang, Hua, Kauppinen, Esko I., Niemelä, Marita, Lehtonen, Juha

“…Single-walled carbon nanotubes (SWCNTs) were successfully grown on calcined stainless steel wires at 700°C using CO as the carbon source. By contrast, the raw…”
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Computational fluid dynamics and hydroacoustics analyses of underwater radiated noise of an ice breaker ship by Viitanen, Ville, Hynninen, Antti, Sipilä, Tuomas

“…Flow and acoustics analyses have been carried out for an ice breaker ship. The numerical acoustic solution relies on the computational fluid dynamics…”
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CFD predictions of unsteady cavitation for a marine propeller in oblique inflow by Viitanen, Ville, Sipilä, Tuomas, Sánchez-Caja, Antonio, Siikonen, Timo

“…In this paper the Potsdam Propeller Test Case is numerically investigated in oblique inflow conditions. We consider three different topics: open water…”
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Atomic Layer Deposition Preparation of Pd Nanoparticles on a Porous Carbon Support for Alcohol Oxidation by Rikkinen, Emma, Santasalo-Aarnio, Annukka, Airaksinen, Sanna, Borghei, Maryam, Viitanen, Ville, Sainio, Jani, Kauppinen, Esko I, Kallio, Tanja, Krause, A. Outi I

“…To reduce the loading of noble metals on fuel cell catalysts a synthesis method providing evenly distributed nanoparticles on the support surface is needed…”
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Accelerated deactivation studies of the natural-gas oxidation catalyst—Verifying the role of sulfur and elevated temperature in catalyst aging by Honkanen, Mari, Kärkkäinen, Marja, Kolli, Tanja, Heikkinen, Olli, Viitanen, Ville, Zeng, Lunjie, Jiang, Hua, Kallinen, Kauko, Huuhtanen, Mika, Keiski, Riitta L., Lahtinen, Jouko, Olsson, Eva, Vippola, Minnamari

“…[Display omitted] •In thermal aging, grown particles with Pt/Pd core and PdO shell formed.•Al2(SO4)3 formed near small PtPd particles during S-treatment.•With…”
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Structural Characteristics of Natural-Gas-Vehicle-Aged Oxidation Catalyst by Honkanen, Mari, Kärkkäinen, Marja, Viitanen, Ville, Jiang, Hua, Kallinen, Kauko, Huuhtanen, Mika, Vippola, Minnamari, Lahtinen, Jouko, Keiski, Riitta, Lepistö, Toivo

“…Deactivation of the natural-gas-vehicle-aged Pt/Pd oxidation catalyst supported on γ-alumina-based washcoat was studied by electron microscopy, X-ray…”
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Deactivation of Diesel Oxidation Catalysts by Sulphur in Laboratory and Engine-Bench Scale Aging by Kärkkäinen, Marja, Honkanen, Mari, Viitanen, Ville, Kolli, Tanja, Valtanen, Anna, Huuhtanen, Mika, Kallinen, Kauko, Vippola, Minnamari, Lepistö, Toivo, Lahtinen, Jouko, Keiski, Riitta L.

“…The activity of sulphur–water- and water-treated PtPd/Al 2 O 3 - and Pt/Al 2 O 3 -based monolith catalysts was investigated. The catalysts were characterized…”
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Chiral-selective growth of single-walled carbon nanotubes on stainless steel wires by MAOSHUAI HE, FEDOTOV, Pavel V, OBRAZTSOVA, Elena D, VIITANEN, Ville, SAINIO, Jani, HUA JIANG, KAUPPINEN, Esko I, NIEMELÄ, Marita, LEHTONEN, Juha

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