Exploring the hydrodynamics of lobed micropillars establishes a pivotal base for studying complex contoured geometry, more closely mirroring real-world scenarios. The present numerical study investigates the various hydraulic characteristics of multilobed structures in an unconfined region with a low Reynolds number range up to \(Re=40\) having stable vortices downstream. Two-dimensional numerical simulations were performed utilizing the finite volume method considering assumptions of laminar, incompressible flow past the multilobed cylinder. Critical findings indicate an initial exponential drop, then a steady decrease in the hydrodynamic drag force coefficient for \(Re\ge 5\) , linked to dynamic flow changes and recirculation zone emergence with an increased \(Re\) . In-depth flow visualization elucidates varying velocity and pressure gradients, vital to the dynamics observed. Both pressure and viscous drag components follow a similar attenuation trend. The study also analyzes pressure coefficient fluctuations over the surface at varying Reynolds numbers, noting a uniform symmetrical pressure pattern and value reduction with increasing Reynolds numbers. Additionally, flow separation is scrutinized, observing its onset near \(Re=2\) with the separation angle reducing and the point shifting toward the body’s leading edge as the \(Re\) rises. Wake length demonstrates a linear positive trend with increasing \(Re\) in the flow regime studied.