Hydraulic & Hydrological Engineering Suite
Your complete offline toolkit for open-channel flow sizing, stormwater peak estimation, backwater profiling, runoff routing, and structure stability analysis.
Manning's Equation & Channel
Trial-fit optimal bed widths, depths, top widths, and freeboards for trapezoidal conveyance channels.
Launch Module
Rational Method (Peak Discharge)
Compute maximum stormwater peak flow rates ($Q = CiA$) from small catchments based on land use coefficients.
Launch Module
Critical Depth & Froude Number
Evaluate critical flow states ($y_c$), specific energy, and Froude numbers to classify subcritical/supercritical regimes.
Launch Module
Unit Hydrograph Convolution
Route effective rainfall excesses through watershed unit hydrograph ordinates to generate direct runoff hydrographs.
Launch Module
Gradually Varied Flow (GVF)
Compute backwater and drawdown water surface profiles using the Direct Step Method behind controls or slopes.
Launch Module
Culvert & Orifice Hydraulics
Estimate headwater depths and discharge performances for circular pipe culverts under inlet control.
Launch Module
SCS Curve Number & Runoff
Determine direct runoff volume depths from rainfall based on soil group classifications and land coverage curves.
Launch Module
Sediment Transport & Shear Stress
Evaluate boundary shear stress ($\tau_0$) against allowable critical limits to prevent scour and channel erosion.
Launch Module