feat(def): add new defs for speeds

style/definitions.sty

@@ -60,6 +60,17 @@
 
 
 % --- Velocities ---------------------------------------------------------------
+
+% Main velocities components
+\newcommand{\vAx}{\ensuremath{V}} % Absolute axial velocity
+\newcommand{\vTg}{\ensuremath{U}} % Absolute tangential velocity
+\newcommand{\rVel}{\ensuremath{W}} % Relative velocity
+
+% Induced velocities
+\newcommand\iAx[1][]{\ensuremath{v_{#1i}}} % Induced axial velocity
+\newcommand{\iTg}[1][]{\ensuremath{u_{#1i}}} % Induced tangential velocity
+
+
 \newcommand{\indSwirl}{\ensuremath{u_i}} % Swirl velocity, in-plane toward rot blade
 \newcommand{\indAxVel}{\ensuremath{v_i}} % Induced velocity, normal to rotor dis
 \newcommand{\airspeed}{\ensuremath{V_\infty}} % Freestream velocity