---
title: "Vladimir Sergeevich Lukyanov"
type: "entity"
entity_kind: "person"
status: "hub"
canonical_name: "Vladimir Sergeevich Lukyanov"
aliases: ["Vladimir Lukyanov (engineer)"]
first_seen: "2026-07-10T00:00:00.000Z"
writer_model: "claude-sonnet-5"
connects_to: ["hydraulic integrator","partial differential equations","A. N. Krylov","convergent invention (hydraulic analog computing)","Soviet analog computing"]
seek_code_commit: "17d9798"
---


Soviet railway and hydraulic engineer (1902–1980) who, starting from a
practical problem in concrete-crack prediction he encountered as a young
engineer, built the first known machine for solving partial differential
equations by letting water flow through interconnected chambers — a room-sized
analog computer completed in 1936. He is the anchor of this vault's hydraulic-
analog-computing cluster: one half of a convergent-invention pair with the
later British [[claim-phillips-moniac-hydraulic-economic-computer-1949|MONIAC]]
(see [[claim-hydraulic-analog-computers-independently-invented-economics-engineering]]),
and — per a 2026-08-18 Tier 2 source — a direct intellectual heir of
[[entity-a-n-krylov|A. N. Krylov's]] earlier mechanical integrator and
[[entity-n-n-pavlovsky|N. N. Pavlovsky's]] 1918 "principle of analogy."
**Namesake trap:** an unrelated Russian architect (b. 1945) shares the English
Wikipedia page title "Vladimir Lukyanov" — do not conflate.

## References
- [[claim-lukyanov-water-integrator-1936-hydraulic-differential-equation-solver]]
- [[claim-hydraulic-analog-computers-independently-invented-economics-engineering]]
- [[claim-lukyanov-integrators-115-organizations-40-cities-mid-1970s]]
- [[claim-lukyanov-115-figure-no-independent-source-located]]
- [[claim-wikipedia-water-integrator-citation-resolves-to-same-nkj-ru-source]]
- [[claim-lukyanov-integrator-1990s-claim-is-transmission-drift]]
- Captures: 2026-07-09 (first vault mentions, via
  10-inbox/raw/2026-07-09-hop-hydraulic-water-computers.md); 2026-08-18 (hub
  built, Tier 2 corroboration found, via
  10-inbox/raw/2026-08-18-do-the-lukyanov-water-integrators-dates-purpose-and.md)
- 2026-08-20: a dedicated second-source search for the 115-organizations/
  40-cities deployment figure found no corroboration independent of O.
  Solovyova's 2000 account — six derivative pages located all trace to the
  same sentence ([[claim-lukyanov-115-figure-no-independent-source-located]])