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Intoducing FlowStudio

If you work with open-channel hydraulics, weirs, gradually varied flow, or seepage under structures, you have probably bounced between spreadsheets, textbook charts, and half-finished notebooks. FlowStudio is a small web app built to keep that work in one place: structured worksheets, clear outputs, and a project tree so you can find yesterday’s calculation.

Try the app: https://flow.syncster.dev

What FlowStudio is

FlowStudio is a browser-based engineering workbook for hydraulic and civil topics. Each worksheet has a dedicated form: you enter geometry, discharge, slopes, coefficients, and so on; the app computes results and can show charts and schematics where it helps (for example, depth profiles, rating curves, section views, or Khosla uplift diagrams). Your inputs and outputs are saved as structured data so you can reopen a sheet and continue without redoing the setup.

Organize work in projects and folders

Worksheets live inside projects. You can add folders to group related sheets—say, one folder per site, course module, or design option—instead of one long flat list. When you use the hosted backend, that structure syncs with your account so the same layout is there on your next session.

What you can run today

Worksheet types include, among others:

  • Open channel: rectangular, trapezoidal, circular, and irregular (natural) sections—Manning-style uniform flow, with section previews and rating curves where applicable.
  • Gradually varied flow (GVF): profile computation with a depth-profile chart.
  • Sluice gate in a channel context.
  • Weirs: rectangular sharp-crested and Cipolletti, with rating and section visuals.
  • Khosla seepage: piecewise head distribution, composite sections, and uplift-style plots tied to the classic method.
  • Tyrolean (bottom-rack) intake: a simplified diversion check with rack geometry, porosity, and optional collecting-channel sizing notes.
Example: the gradually varied flow worksheet—profile computation, tabulated outputs, and a depth profile chart in one view (FlowStudio).

The exact list evolves with the product; the app and API enforce allowed worksheet types so everything stays consistent end to end.

Sign-in without storing passwords in the app

Accounts use Firebase (for example, Google sign-in). The backend verifies identity and issues short-lived JWT access tokens; the app does not implement its own password database. That keeps authentication familiar while separating “who you are” from the worksheet math.

A word on responsibility

FlowStudio is built as an educational and design-aid tool. Many modules embed textbook-style simplifications (Khosla fits, weir coefficients, Tyrolean analogies, and so on). Always cross-check against your governing codes, site data, and—where it matters—physical model tests or detailed analysis before anything goes to construction or legal sign-off.

Why I’m sharing it

I wanted a workspace that feels like serious scratch paper: fast to use, honest about assumptions, and organized enough for real project work. If that resonates—whether you teach hydraulics, size rural intakes, or sanity-check a student problem set—FlowStudio might save you a few round trips between PDFs and cells. You can open it any time at https://flow.syncster.dev.

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