Motivated by outstanding aerodynamic performance and limited emissions, the blend-wing-body (BWB) aircraft equipped with a distributed propulsion (DP) system has become a possible layout for...

The concept aircraft SAX-40 (Silent Aircraft eXperimental) is a result of an iterative design process (SAX-01 to SAX-40) to achieve low noise and improved fuel burn. 149 passenger-miles per UK gallon of fuel (compared with about 120 for the best current aircraft in this range and size).

The outcome of this research effort has been a Silent Aircraft eXperimental design SAX-40, as shown in Fig. 1, that could carry 215 passengers, with a range of 5,000nm in a blended-wing-body...

In this paper, a BWB aircraft baseline was designed and its aerodynamic behaviour and performance were analyzed with a special emphasis on its challenging stability and control features.

Distributed propulsion system enhances ability to ingest airframe boundary layer, with propulsion efficiency benefit. SAX-40 is predicted to achieve a step-change in noise from existing fleet. Cumulative noise is 75 cumulative EPNdB below ICAO Chapter 4 requirement of 284.5 cumulative EPNdB. Market viability. Societal acceptance.

2008年2月1日 · Several advanced-technology baseline concepts were created to serve as a basis for comparison to the SAX-40 concept. These comparisons indicate that the SAX-40 would have significantly greater research, development, test, and engineering (RDT&E) and production costs than a conventional aircraft with similar technology levels.

为了验证未来混合翼身布局飞机的水上迫降力学性能，数值求解非定常雷诺时均Navier-Stokes （URANS）方程和Realizable κ - ε 湍流模型，采用动网格方法处理飞机与水面间的相对运动、流体体积（VOF）模型追踪水面变形，模拟了SAX-40飞机刚性模型以12°初始俯仰角在平静水面上迫 …

A candidate configuration with the previously mentioned characteristics is the silent-aircraft experimental design (SAX)-40, as shown in Fig. 1. The conceptual aircraft design uses a blended-wing– body (BWB)-type airframe [4,5] with an embedded boundary-layeringesting distributed propulsion system, discussed in depth in a companion paper [6].

Silent Aircraft eXperimental design SAX-40. increased levels of induced drag through an inefficient lift distribution over the all-lifting airframe during approach. This is achieved via a combination of upward deflected elevons and vectored thrust.

A BWB is a wing-body highly integrated aerodynamic layout and its center body part has a larger volume, distinguishing it from the flying wing layout [2].