The application of the riblets to a typical regional turbo-prop configuration is discussed in this paper. The effect of the riblets is modelled as a singular roughness problem by a proper boundary condition proposed by University of Napoli. The model is described and first its application to 2D flows is presented. Then a typical wing-body of a regional aircraft is considered. The configuration has been designed to have a natural laminar flow for a large extent of the wing in cruise conditions. Riblets are applied at flow specifi- cations representative of cruise in combination with the laminar flow technology and in climb/descent conditions. The save of fuel achievable in a typical operative day of such an aircraft has been also estimated.
Effects of riblets on the performances of a regional aircraft configuration in NLF conditions / Catalano, Pietro; de Rosa, Donato; Mele, Benedetto; Tognaccini, Renato; Moens, Frederic. - In: AIAA PAPER. - ISSN 0146-3705. - AIAA Paper 2018-1260:(2018), pp. 1-16. [10.2514/6.2018-1260]
Effects of riblets on the performances of a regional aircraft configuration in NLF conditions
Mele, Benedetto;Tognaccini, Renato;
2018
Abstract
The application of the riblets to a typical regional turbo-prop configuration is discussed in this paper. The effect of the riblets is modelled as a singular roughness problem by a proper boundary condition proposed by University of Napoli. The model is described and first its application to 2D flows is presented. Then a typical wing-body of a regional aircraft is considered. The configuration has been designed to have a natural laminar flow for a large extent of the wing in cruise conditions. Riblets are applied at flow specifi- cations representative of cruise in combination with the laminar flow technology and in climb/descent conditions. The save of fuel achievable in a typical operative day of such an aircraft has been also estimated.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
