JBLADE is an open-source propeller design and analysis code written in the Qt® programming language. The code is based on David Marten’s QBLADE and André Deperrois’ XFLR5.
The airfoil performance figures needed for the blades simulation come from QBLADE’s coupling with the open-source code XFOIL. This integration, which is also being improved, allows the fast design of custom airfoils and computation of their polars.
JBLADE uses the classical Blade Element Momentum (BEM) theory modified to account for the 3D flow equilibrium. A short view about theoretical formulation for propeller analysis is presented in the Guidelines.
The code can estimate the performance curves of a given propeller design for off-design analysis. The software has a graphical interface making easier to build and analyze the propeller simulations.
The long term goal of the JBLADE is to provide a user-friendly, accurate, and validated open-source code that can be used to design and optimize a variety of propellers.