Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Douglas Martins Rocha"'
Autor:
Douglas Martins Rocha
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
A maioria dos poços de petróleo offshore explorados no Brasil utilizam a técnica de elevação artificial de petróleo conhecida como gas-lift. Mais importante, há previsão de uso intensivo dessa técnica nos poços do pré-sal, sob pressões ex
Autor:
Douglas Martins Rocha, Fabio Toshio Kanizawa, Kosuke Hayashi, Shigeo Hosokawa, Akio Tomiyama, Gherhardt Ribatski
Publikováno v:
Experimental Thermal and Fluid Science. 147:110947
Autor:
Kosuke Hayashi, Gherhardt Ribatski, Shigeo Hosokawa, Fabio Toshio Kanizawa, Douglas Martins Rocha, Akio Tomiyama
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
This paper presents results for the experimental vector velocity field obtained through spatial filter velocimetry in a triangular tube bundle with tubes of 20 mm O.D. and a transverse pitch of 25.2 mm. The experiments were conducted for single-phase
Publikováno v:
Proceedings of the XI Congresso Nacional de Engenharia Mecânica - CONEM 2022.
Autor:
Kosuke Hayashi, Douglas Martins Rocha, Gherhardt Ribatski, Shigeo Hosokawa, Fabio Toshio Kanizawa, Akio Tomiyama
Publikováno v:
Volume 1: Fluid Applications and Systems; Fluid Measurement and Instrumentation.
This paper presents an analysis of the performance of the Spatial Filter Velocimetry (SFV) technique applied to external flows across tube bundles to evaluate the benefits of using low particle concentration in a complex geometry. The experimental ve
Autor:
Kosuke Hayashi, Douglas Martins Rocha, Gherhardt Ribatski, Fabio Toshio Kanizawa, Shigeo Hosokawa, Akio Tomiyama
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
This paper presents the experimental vector velocity field obtained through the spatial filter velocimetry technique in a normal triangular tube bundle test section with tubes of 20 mm O.D. and transverse pitch of 25.2 mm. The experiments were conduc
Autor:
Sabrina dos Santos Ferreira, Ilvandro Luiz Souza Sueth, Cristiano Bigonha Tibiriçá, Gerson Koiti Kurosawa Shimizu, Marcel Cavallini Barbosa, Douglas Martins Rocha, Gustavo Bochio
Publikováno v:
Applied Thermal Engineering. 126:774-795
In this work a complete set of simple and optimized correlations for flow boiling and two-phase flow conditions in microchannels were developed for prediction of the critical heat flux, flow pattern transition, heat transfer coefficient, frictional p
Autor:
Valdir Estevam, Douglas Martins Rocha, Carlos H. M. de Carvalho, Oscar Mauricio Hernandez Rodriguez
Publikováno v:
Journal of Petroleum Science and Engineering. 157:519-529
The natural and artificial presence of water and gas is common in the offshore oil production scenario. In the last years, several studies on two-phase flows of viscous oils proved that the water and gas addiction is very efficient in the frictional
Autor:
Nelson Gouveia, Claudia K. Suemoto, Paulo A. Lotufo, Itamar S. Santos, Isabela M. Benseñor, Douglas Martins Rocha
Publikováno v:
Environmental Research. 191:110208
Background Despite the knowledge about the deleterious effects of air pollutants and their influence on mortality and morbidity due to respiratory and cardiovascular diseases, little is known about the relationship between atmospheric pollutants and