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A versatile table-top dusty plasma experimental (DPEx) device to study flowinduced excitations of linear and nonlinear waves/structures in a complexplasma is presented. In this {$\Pi$}-shaped apparatus a DC glow dischargeplasma is produced between a disc shaped anode and a grounded long cathode{tray} by applying a high voltage DC in the background of a neutral gas{(Argon)} and subsequently a dusty plasma is created by introducing micronsized dust particles that get charged and levitated in the sheath region. Aflow of the dust particles is induced in a controlled manner by adjusting thepumping speed and the gas flow rate into the device. A full characterisation ofthe plasma, using Langmuir and emissive probe data, and that of the dustyplasma using particle tracking data with the help of an idl based (super)Particle Identification and Tracking (sPIT) code is reported. Experimentalresults on the variation of the dust flow velocity as a function of the neutralpressure and the gas flow rate are given. {The neutral drag force acting on theparticles and the Epstein coefficient are estimated from the initialacceleration of the particles}. The potential experimental capabilities of thedevice for conducting fundamental studies of flow induced instabilities arediscussed.

Dusty Plasma Experimental (DPEx) device for complex plasma experiments with flow